diff --git a/apps/desktop/src/main/ipc/instruction-handlers.ts b/apps/desktop/src/main/ipc/instruction-handlers.ts
index 8f05d32..39ec34d 100644
--- a/apps/desktop/src/main/ipc/instruction-handlers.ts
+++ b/apps/desktop/src/main/ipc/instruction-handlers.ts
@@ -33,9 +33,14 @@ export function registerInstructionHandlers(): void {
 
   ipcMain.handle(
     IPC_CHANNELS.INSTRUCTION.UPDATE,
-    async (_event, params: { id: string; data: Partial<CustomInstruction> }) => {
+    async (
+      _event,
+      params: { id: string; data?: Partial<CustomInstruction>; name?: string; description?: string; prompt?: string; icon?: string }
+    ) => {
       try {
-        const result = getCustomInstructionService().update(params.id, params.data)
+        const { id, data, ...rest } = params
+        const updatePayload = data ?? rest
+        const result = getCustomInstructionService().update(id, updatePayload)
         return ipcSuccess(result)
       } catch (error) {
         const message = error instanceof Error ? error.message : String(error)
diff --git a/apps/desktop/src/main/ipc/meeting-mode-handlers.ts b/apps/desktop/src/main/ipc/meeting-mode-handlers.ts
index b6c70f4..2d7f27a 100644
--- a/apps/desktop/src/main/ipc/meeting-mode-handlers.ts
+++ b/apps/desktop/src/main/ipc/meeting-mode-handlers.ts
@@ -3,7 +3,7 @@
 
 import { ipcMain } from 'electron'
 import { IPC_CHANNELS } from '@d3ro/core/ipc-channels'
-import { ErrorCode, ipcSuccess, ipcError } from '@d3ro/core/errors'
+import { ErrorCode, ipcSuccess, ipcError, D3ROError } from '@d3ro/core/errors'
 import { getMeetingModeService } from '../services/MeetingModeService'
 import { getLogger } from '../services/LoggerService'
 import type {
@@ -188,9 +188,9 @@ export function registerMeetingModeHandlers(): void {
     }
   })
 
-  ipcMain.handle(ch.EXPORT_DOCUMENT, async (_event, params: { documentId: string; format: MeetingExportFormat }) => {
+  ipcMain.handle(ch.EXPORT_DOCUMENT, async (_event, params: { documentId: string; format: MeetingExportFormat; targetPath?: string }) => {
     try {
-      const filePath = await getMeetingModeService().exportDocument(params.documentId, params.format)
+      const filePath = await getMeetingModeService().exportDocument(params.documentId, params.format, params.targetPath)
       return ipcSuccess(filePath)
     } catch (err) {
       logger.error(`exportDocument 실패: ${err instanceof Error ? err.message : String(err)}`)
@@ -201,9 +201,9 @@ export function registerMeetingModeHandlers(): void {
     }
   })
 
-  ipcMain.handle(ch.EXPORT_TRANSCRIPT, async (_event, params: { sessionId: string }) => {
+  ipcMain.handle(ch.EXPORT_TRANSCRIPT, async (_event, params: { sessionId: string; targetPath?: string }) => {
     try {
-      const filePath = await getMeetingModeService().exportTranscript(params.sessionId)
+      const filePath = await getMeetingModeService().exportTranscript(params.sessionId, params.targetPath)
       return ipcSuccess(filePath)
     } catch (err) {
       logger.error(`exportTranscript 실패: ${err instanceof Error ? err.message : String(err)}`)
diff --git a/apps/desktop/src/main/services/ConfigService.ts b/apps/desktop/src/main/services/ConfigService.ts
index 49cb419..f6079b6 100644
--- a/apps/desktop/src/main/services/ConfigService.ts
+++ b/apps/desktop/src/main/services/ConfigService.ts
@@ -3,12 +3,13 @@
 
 import { EventEmitter } from 'events'
 import type { AppConfig, ConfigChangedEvent } from '@d3ro/core/types'
+import { D3ROError, ErrorCode } from '@d3ro/core/errors'
 import { getLogger } from './LoggerService'
 
 const logger = getLogger('ConfigService')
 
 // electron-store v10은 ESM 전용이므로 동적 import 필요
-interface ElectronStore<T extends Record<string, unknown>> {
+interface ElectronStore<T> {
   get<K extends keyof T>(key: K): T[K]
   set<K extends keyof T>(key: K, value: T[K]): void
   store: T
@@ -25,6 +26,7 @@ const CONFIG_DEFAULTS: AppConfig = {
   sttProvider: 'local' as const,
   sttProviderConfigs: {
     local: { modelId: 'large-v3-turbo' },
+    'd3ro-cloud': { modelId: 'default', apiKey: '', baseUrl: 'http://localhost:5000' },
     openai: { modelId: 'whisper-1', apiKey: '', baseUrl: 'https://api.openai.com/v1' },
     groq: { modelId: 'whisper-large-v3-turbo', apiKey: '', baseUrl: 'https://api.groq.com/openai/v1' },
     deepgram: { modelId: 'nova-3', apiKey: '', baseUrl: 'https://api.deepgram.com' },
@@ -106,6 +108,9 @@ const CONFIG_DEFAULTS: AppConfig = {
   activeInstructionId: '',
   activeChainId: null,
   captionAudioSource: 'mic',
+  updateChannel: 'latest',
+  updateDeviceId: '',
+  skippedUpdateVersion: null,
 }
 
 let store: ElectronStore<AppConfig> | null = null
@@ -164,8 +169,12 @@ export function configSet<K extends keyof AppConfig>(key: K, value: AppConfig[K]
     logger.warn(`ConfigService not initialized — using in-memory store for "${key}"`)
     initInMemoryConfig()
   }
-  const previousValue = store.get(key)
-  store.set(key, value)
+  const activeStore = store
+  if (!activeStore) {
+    throw new D3ROError(ErrorCode.ConfigWriteFailed, 'Config store unavailable')
+  }
+  const previousValue = activeStore.get(key)
+  activeStore.set(key, value)
 
   const event: ConfigChangedEvent = {
     key,
diff --git a/apps/desktop/src/main/services/CustomInstructionService.ts b/apps/desktop/src/main/services/CustomInstructionService.ts
index e0182f4..7eae7f6 100644
--- a/apps/desktop/src/main/services/CustomInstructionService.ts
+++ b/apps/desktop/src/main/services/CustomInstructionService.ts
@@ -9,7 +9,10 @@ import type { CustomInstruction } from '@d3ro/core/types'
 
 const logger = getLogger('CustomInstructionService')
 
-type CreateInput = Omit<CustomInstruction, 'id' | 'isBuiltin' | 'order' | 'createdAt' | 'updatedAt'>
+type CreateInput = Omit<
+  CustomInstruction,
+  'id' | 'isBuiltin' | 'order' | 'createdAt' | 'updatedAt' | 'icon'
+> & { icon?: string }
 
 // ============================================================
 // 프리셋 명령어 (Phase 6 설계)
diff --git a/apps/desktop/src/main/services/DictationTemplateService.ts b/apps/desktop/src/main/services/DictationTemplateService.ts
index 0760864..a4a995b 100644
--- a/apps/desktop/src/main/services/DictationTemplateService.ts
+++ b/apps/desktop/src/main/services/DictationTemplateService.ts
@@ -66,7 +66,7 @@ const BUILTIN_TEMPLATES: DictationTemplate[] = [
   },
 ]
 
-interface TemplateStoreSchema {
+type TemplateStoreSchema = {
   templates: DictationTemplate[]
 }
 
diff --git a/apps/desktop/src/main/services/HistoryService.ts b/apps/desktop/src/main/services/HistoryService.ts
index 7a7fa5b..1ec59ee 100644
--- a/apps/desktop/src/main/services/HistoryService.ts
+++ b/apps/desktop/src/main/services/HistoryService.ts
@@ -33,7 +33,7 @@ class HistoryService {
     db.insert(history).values(entry).run()
 
     // stats 싱글톤 업데이트
-    this._updateStats(input.duration, input.wordCount)
+    this._updateStats(input.duration ?? 0, input.wordCount ?? 0)
 
     logger.info(`History entry created: ${id}`)
 
diff --git a/apps/desktop/src/main/services/HotkeyService.ts b/apps/desktop/src/main/services/HotkeyService.ts
index 6d9fe49..52bcbcb 100644
--- a/apps/desktop/src/main/services/HotkeyService.ts
+++ b/apps/desktop/src/main/services/HotkeyService.ts
@@ -653,16 +653,6 @@ class HotkeyService extends EventEmitter {
     return null
   }
 
-  /** 주어진 uiohook 키코드가 수정자 키(Ctrl/Alt/Shift/Meta)인지 확인 */
-  private _isModifierKeyCode(keyCode: number): boolean {
-    return (
-      this._isCtrlKeyCode(keyCode) ||
-      this._isAltKeyCode(keyCode) ||
-      this._isShiftKeyCode(keyCode) ||
-      this._isMetaKeyCode(keyCode)
-    )
-  }
-
   private _isCtrlKeyCode(keyCode: number): boolean {
     return keyCode === UiohookKey.Ctrl || keyCode === UiohookKey.CtrlRight
   }
diff --git a/apps/desktop/src/main/services/LicenseService.ts b/apps/desktop/src/main/services/LicenseService.ts
index 3565a53..9283e21 100644
--- a/apps/desktop/src/main/services/LicenseService.ts
+++ b/apps/desktop/src/main/services/LicenseService.ts
@@ -19,6 +19,7 @@ import type {
   TierComparison,
 } from '@d3ro/core/types'
 import { Feature } from '@d3ro/core/types'
+import { normalizeEntitlementTier } from '@d3ro/core/entitlement'
 import { verifySignedLicenseKey, createDefaultTrialPayload } from '@d3ro/core/utils/crypto-license'
 
 const logger = getLogger('license')
@@ -147,7 +148,6 @@ function getTomorrowMidnight(): string {
 // ── LicenseService 싱글톤 ──────────────────────────────────
 class LicenseService extends EventEmitter {
   private _info: LicenseInfo
-  private _initialized = false
 
   constructor() {
     super()
@@ -216,7 +216,6 @@ class LicenseService extends EventEmitter {
       }
     }
 
-    this._initialized = true
     logger.info(`LicenseService initialized: tier=${this._info.tier}, trial=${this._info.isTrial ?? false}, machineId=${this._info.machineId.substring(0, 8)}...`)
   }
 
@@ -316,14 +315,15 @@ class LicenseService extends EventEmitter {
    * CloudSyncService._onAuthenticated에서 호출.
    */
   syncFromCloud(tier: LicenseTier): void {
-    if (this._info.tier === tier) return
+    const normalized = normalizeEntitlementTier(tier)
+    if (this._info.tier === normalized) return
     const previous = this._info.tier
-    this._info.tier = tier
+    this._info.tier = normalized
     this._info.lastVerifiedAt = Date.now()
-    this._writeStoredField('licenseTier', tier)
+    this._writeStoredField('licenseTier', normalized)
     this._writeStoredField('licenseLastVerifiedAt', this._info.lastVerifiedAt)
     this.emit('tier-changed', this.getInfo())
-    logger.info(`License tier synced from cloud: ${previous} → ${tier}`)
+    logger.info(`License tier synced from cloud: ${previous} → ${normalized}`)
   }
 
   /**
diff --git a/apps/desktop/src/main/services/MeetingDocTemplateService.ts b/apps/desktop/src/main/services/MeetingDocTemplateService.ts
index 56ae467..dacd8ba 100644
--- a/apps/desktop/src/main/services/MeetingDocTemplateService.ts
+++ b/apps/desktop/src/main/services/MeetingDocTemplateService.ts
@@ -145,7 +145,7 @@ const BUILTIN_TEMPLATES: MeetingDocTemplate[] = [
   },
 ]
 
-interface MeetingDocTemplateStoreSchema {
+type MeetingDocTemplateStoreSchema = {
   templates: MeetingDocTemplate[]
 }
 
diff --git a/apps/desktop/src/main/services/MeetingModeService.ts b/apps/desktop/src/main/services/MeetingModeService.ts
index 4c674ed..264681e 100644
--- a/apps/desktop/src/main/services/MeetingModeService.ts
+++ b/apps/desktop/src/main/services/MeetingModeService.ts
@@ -59,7 +59,6 @@ class MeetingModeService extends EventEmitter {
 
   /** Phase 15.5-2: 녹음 중 오디오 WAV 파일 보존 */
   private _audioBuffersForFile: Buffer[] = []
-  private _audioFilePath: string | null = null
 
   // Phase 15: Meeting AI Chat
   private _chatHistory: Array<{ role: 'user' | 'assistant'; content: string }> = []
@@ -369,7 +368,6 @@ class MeetingModeService extends EventEmitter {
           if (!fs.existsSync(audioDir)) fs.mkdirSync(audioDir, { recursive: true })
           const wavPath = path.join(audioDir, `${sessionId}.wav`)
           this._saveWav(wavPath, Buffer.concat(this._audioBuffersForFile))
-          this._audioFilePath = wavPath
           logger.info(`회의 오디오 저장: ${wavPath}`)
         } catch (err) {
           logger.warn(`오디오 저장 실패: ${err instanceof Error ? err.message : String(err)}`)
@@ -560,7 +558,6 @@ class MeetingModeService extends EventEmitter {
     this._memos = []
     this._meetingModeActive = false
     this._audioBuffersForFile = []
-    this._audioFilePath = null
   }
 
   /** PCM16 버퍼를 WAV 파일로 저장 (16kHz mono 16-bit) */
@@ -745,7 +742,7 @@ class MeetingModeService extends EventEmitter {
       title: docTitle,
       content: result.text,
       promptUsed: systemPrompt,
-      llmModel: result.model,
+      llmModel: result.model ?? null,
       llmLatencyMs,
       createdAt: now,
       updatedAt: now,
@@ -797,7 +794,7 @@ class MeetingModeService extends EventEmitter {
 
   // ── Phase 14.5: 문서 내보내기 ──
 
-  async exportDocument(documentId: string, format: MeetingExportFormat): Promise<string> {
+  async exportDocument(documentId: string, format: MeetingExportFormat, targetPath?: string): Promise<string> {
     const db = getDatabase()
     const row = db.select().from(meetingDocuments).where(eq(meetingDocuments.id, documentId)).get()
     if (!row) {
@@ -829,25 +826,27 @@ class MeetingModeService extends EventEmitter {
         break
     }
 
-    if (isShowingMeetingSaveDialog) {
-      return ''
-    }
-    isShowingMeetingSaveDialog = true
-    let filePath: string | undefined
-    try {
-      const { getMainWindow } = await import('../windows/WindowManager')
-      const mainWindow = getMainWindow()
-      const dialogOptions = {
-        title: '문서 내보내기',
-        defaultPath: defaultName,
-        filters,
+    let filePath: string | undefined = targetPath
+    if (!filePath) {
+      if (isShowingMeetingSaveDialog) {
+        return ''
+      }
+      isShowingMeetingSaveDialog = true
+      try {
+        const { getMainWindow } = await import('../windows/WindowManager')
+        const mainWindow = getMainWindow()
+        const dialogOptions = {
+          title: '문서 내보내기',
+          defaultPath: defaultName,
+          filters,
+        }
+        const res = mainWindow
+          ? await dialog.showSaveDialog(mainWindow, dialogOptions)
+          : await dialog.showSaveDialog(dialogOptions)
+        filePath = res.filePath
+      } finally {
+        isShowingMeetingSaveDialog = false
       }
-      const res = mainWindow
-        ? await dialog.showSaveDialog(mainWindow, dialogOptions)
-        : await dialog.showSaveDialog(dialogOptions)
-      filePath = res.filePath
-    } finally {
-      isShowingMeetingSaveDialog = false
     }
     if (!filePath) return ''
 
@@ -900,7 +899,7 @@ class MeetingModeService extends EventEmitter {
     return filePath
   }
 
-  async exportTranscript(sessionId: string): Promise<string> {
+  async exportTranscript(sessionId: string, targetPath?: string): Promise<string> {
     const db = getDatabase()
     const row = db.select().from(meetingSessions).where(eq(meetingSessions.id, sessionId)).get()
     if (!row) {
@@ -911,11 +910,15 @@ class MeetingModeService extends EventEmitter {
     const dateStr = formatDateFile(row.startedAt)
     const safeTitle = (row.title ?? '무제_회의').replace(/[/\\?%*:|"<>]/g, '-').slice(0, 50)
 
-    const { filePath } = await dialog.showSaveDialog({
-      title: '전사 내보내기',
-      defaultPath: `전사_${safeTitle}_${dateStr}.txt`,
-      filters: [{ name: 'Text', extensions: ['txt'] }],
-    })
+    let filePath: string | undefined = targetPath
+    if (!filePath) {
+      const res = await dialog.showSaveDialog({
+        title: '전사 내보내기',
+        defaultPath: `전사_${safeTitle}_${dateStr}.txt`,
+        filters: [{ name: 'Text', extensions: ['txt'] }],
+      })
+      filePath = res.filePath
+    }
     if (!filePath) return ''
 
     fs.writeFileSync(filePath, transcript, 'utf-8')
diff --git a/apps/desktop/src/main/services/MeetingSummaryService.ts b/apps/desktop/src/main/services/MeetingSummaryService.ts
index 6dc8138..ee89506 100644
--- a/apps/desktop/src/main/services/MeetingSummaryService.ts
+++ b/apps/desktop/src/main/services/MeetingSummaryService.ts
@@ -13,6 +13,7 @@ import { getCloudSyncService } from './CloudSyncService'
 import { getDatabase } from '../db'
 import { history } from '../db/schema'
 import { getMainWindow } from '../windows/WindowManager'
+import { toSafeFilenameSegment } from '../utils/safe-filename'
 import { IPC_CHANNELS } from '@d3ro/core/ipc-channels'
 import { D3ROError, ErrorCode } from '@d3ro/core/errors'
 import type { MeetingSummaryResult, MeetingSummaryProgress } from '@d3ro/core/types'
@@ -153,6 +154,8 @@ class MeetingSummaryService extends EventEmitter {
 
     const date = new Date(entry.createdAt)
     const dateStr = date.toISOString().slice(0, 10)
+    const safeTitle = toSafeFilenameSegment(entry.title, 'meeting-summary')
+    const defaultName = `d3ro-summary-${safeTitle}-${dateStr}.md`
     if (isShowingSummarySaveDialog) {
       throw new D3ROError(ErrorCode.MeetingSummaryExportFailed, 'Export dialog already active')
     }
diff --git a/apps/desktop/src/main/services/MemoService.ts b/apps/desktop/src/main/services/MemoService.ts
index f864ee0..4fe1f2f 100644
--- a/apps/desktop/src/main/services/MemoService.ts
+++ b/apps/desktop/src/main/services/MemoService.ts
@@ -148,6 +148,7 @@ class MemoService {
     const rows = db
       .select({
         id: history.id,
+        title: history.title,
         originalText: history.originalText,
         polishedText: history.polishedText,
         focusedApp: history.focusedApp,
@@ -167,7 +168,8 @@ class MemoService {
         llmLatencyMs: history.llmLatencyMs,
         createdAt: history.createdAt,
         updatedAt: history.updatedAt,
-        appVersion: history.appVersion
+        appVersion: history.appVersion,
+        summaryText: history.summaryText
       })
       .from(memoTags)
       .innerJoin(history, eq(memoTags.historyId, history.id))
@@ -309,6 +311,7 @@ class MemoService {
 
   private _toHistoryEntry(row: {
     id: string
+    title: string | null
     originalText: string
     polishedText: string | null
     focusedApp: string | null
@@ -329,9 +332,11 @@ class MemoService {
     createdAt: number
     updatedAt: number
     appVersion: string
+    summaryText: string | null
   }): HistoryEntry {
     return {
       id: row.id,
+      title: row.title,
       originalText: row.originalText,
       polishedText: row.polishedText,
       focusedApp: row.focusedApp,
@@ -351,7 +356,8 @@ class MemoService {
       llmLatencyMs: row.llmLatencyMs,
       createdAt: row.createdAt,
       updatedAt: row.updatedAt,
-      appVersion: row.appVersion
+      appVersion: row.appVersion,
+      summaryText: row.summaryText
     }
   }
 }
diff --git a/apps/desktop/src/main/services/RAGService.ts b/apps/desktop/src/main/services/RAGService.ts
index c2c590b..319f91a 100644
--- a/apps/desktop/src/main/services/RAGService.ts
+++ b/apps/desktop/src/main/services/RAGService.ts
@@ -353,7 +353,8 @@ ${context}`
       if (chunk.length > 10) {
         chunks.push(chunk)
       }
-      start = end - CHUNK_OVERLAP
+      if (end >= safeText.length) break
+      start = Math.max(start + 1, end - CHUNK_OVERLAP)
       if (start >= safeText.length) break
     }
     return chunks
diff --git a/apps/desktop/src/main/services/ScreenContextService.ts b/apps/desktop/src/main/services/ScreenContextService.ts
index 3aa25dc..412ad01 100644
--- a/apps/desktop/src/main/services/ScreenContextService.ts
+++ b/apps/desktop/src/main/services/ScreenContextService.ts
@@ -14,10 +14,12 @@ const logger = getLogger('screen-context')
 // nut-js 타입 (lazy import)
 // ============================================================
 
+type NutModule = typeof import('@nut-tree-fork/nut-js')
+
 interface NutKeyboard {
-  pressKey: (...keys: number[]) => Promise<void>
-  releaseKey: (...keys: number[]) => Promise<void>
-  Key: Record<string, number>
+  pressKey: NutModule['keyboard']['pressKey']
+  releaseKey: NutModule['keyboard']['releaseKey']
+  Key: NutModule['Key']
 }
 
 // ============================================================
diff --git a/apps/desktop/src/main/services/TextInsertService.ts b/apps/desktop/src/main/services/TextInsertService.ts
index 0179fac..97f2f7e 100644
--- a/apps/desktop/src/main/services/TextInsertService.ts
+++ b/apps/desktop/src/main/services/TextInsertService.ts
@@ -45,7 +45,6 @@ interface TextInsertEvents {
 
 class TextInsertService extends EventEmitter {
   private _nutKeyboard: NutKeyboard | null = null
-  private _nutLoaded = false
   private _nutLoadPromise: Promise<void> | null = null
 
   /**
@@ -64,7 +63,6 @@ class TextInsertService extends EventEmitter {
             type: nut.keyboard.type.bind(nut.keyboard),
             Key: nut.Key
           }
-          this._nutLoaded = true
           logger.info('nut-js loaded successfully')
         } catch (error) {
           logger.error(`Failed to load nut-js: ${error instanceof Error ? error.message : String(error)}`)
@@ -247,11 +245,13 @@ class TextInsertService extends EventEmitter {
 
 // ── nut-js 타입 (lazy import용) ──────────────────────────
 
+type NutModule = typeof import('@nut-tree-fork/nut-js')
+
 interface NutKeyboard {
-  pressKey: (...keys: number[]) => Promise<void>
-  releaseKey: (...keys: number[]) => Promise<void>
-  type: (text: string) => Promise<void>
-  Key: Record<string, number>
+  pressKey: NutModule['keyboard']['pressKey']
+  releaseKey: NutModule['keyboard']['releaseKey']
+  type: NutModule['keyboard']['type']
+  Key: NutModule['Key']
 }
 
 // ── 싱글톤 ─────────────────────────────────────────────
diff --git a/apps/desktop/src/main/services/VoiceModeService.ts b/apps/desktop/src/main/services/VoiceModeService.ts
index 97c33ee..212710b 100644
--- a/apps/desktop/src/main/services/VoiceModeService.ts
+++ b/apps/desktop/src/main/services/VoiceModeService.ts
@@ -21,7 +21,7 @@ import { getLocalLLMService } from './LocalLLMService'
 import { D3ROError, ErrorCode } from '@d3ro/core/errors'
 import { TIMING } from '@d3ro/core/constants'
 import { RecognitionState, AudioState } from '@d3ro/core/types'
-import type { VoiceMode, VoiceState } from '@d3ro/core/types'
+import type { VoiceMode, VoiceState, LLMAction } from '@d3ro/core/types'
 import {
   showRecordingTip,
   hideRecordingTip,
@@ -122,9 +122,6 @@ class VoiceModeService extends EventEmitter {
   private _errorHideTimer: NodeJS.Timeout | null = null
   /** 녹음 종료 후 STT 준비 대기 타이머 — 전사 시작 시 반드시 해제 */
   private _sttWaitTimer: NodeJS.Timeout | null = null
-  /** 실시간 부분 전사 루프 */
-  private _interimTimer: NodeJS.Timeout | null = null
-  private _interimBusy = false
 
   // Action Queue (이벤트 직렬화)
   private _actionQueue: VoiceAction[] = []
@@ -314,9 +311,6 @@ class VoiceModeService extends EventEmitter {
     // (_initSTT는 내부에서 에러를 _handleError로 처리하므로 fire-and-forget 안전)
     void this._initSTT()
     await this._startAudio()
-
-    // 실시간 부분 전사 루프 시작 (STT 준비 + 스트리밍 중일 때만 동작)
-    this._startInterimLoop()
   }
 
   async stopSession(): Promise<void> {
@@ -482,7 +476,6 @@ class VoiceModeService extends EventEmitter {
   }
 
   private async _stopAudio(): Promise<void> {
-    this._stopInterimLoop()
     this._setAudioState(AudioState.STOPPED)
 
     const audio = getAudioCaptureService()
@@ -503,30 +496,6 @@ class VoiceModeService extends EventEmitter {
     }
   }
 
-  // ── 실시간 부분 전사 (interim) ──────────────────────────
-  // 녹음 중 1.5초 간격으로 현재 버퍼(최근 12초 윈도우)를 전사해
-  // RecordingTip에 "말하는 대로 적히는" 미리보기를 제공한다.
-  // 최종 전사는 release 후 전체 버퍼로 다시 수행 (기존 경로 그대로).
-
-  private _startInterimLoop(): void {
-    this._stopInterimLoop()
-    this._interimTimer = setInterval(() => {
-      void this._runInterimTranscribe()
-    }, 1500)
-  }
-
-  private _stopInterimLoop(): void {
-    if (this._interimTimer) {
-      clearInterval(this._interimTimer)
-      this._interimTimer = null
-    }
-    this._interimBusy = false
-  }
-
-  private async _runInterimTranscribe(): Promise<void> {
-    // Cloud STT does not support interim streaming yet
-  }
-
   // ── 이중 조건 플러시 ───────────────────────────────────
 
   private _tryFlushAll(): void {
@@ -713,6 +682,10 @@ class VoiceModeService extends EventEmitter {
 
     try {
       const action = configGet('defaultLLMAction')
+      if (action === 'none') {
+        this._completeSession(transcribedText)
+        return
+      }
 
       // Phase 10.2: 스크린 컨텍스트를 LLM 프롬프트에 주입
       let contextPrefix = ''
@@ -890,7 +863,6 @@ class VoiceModeService extends EventEmitter {
   }
 
   private _resetToIdle(): void {
-    this._stopInterimLoop()
     this._clearSttWaitTimer()
     this._session = null
     this._audioBuffer = []
diff --git a/apps/desktop/src/main/services/stt/audio-utils.ts b/apps/desktop/src/main/services/stt/audio-utils.ts
index 9a4d2cc..7d36747 100644
--- a/apps/desktop/src/main/services/stt/audio-utils.ts
+++ b/apps/desktop/src/main/services/stt/audio-utils.ts
@@ -75,3 +75,14 @@ export function createProbeWav(durationMs: number = 500, sampleRate: number = 16
 
   return pcmToWav(pcmBuffer, sampleRate, 1, 16)
 }
+
+/**
+ * Buffer를 fetch 요청 본문으로 넘긴다.
+ *
+ * 런타임에서는 Buffer가 Uint8Array이므로 그대로 본문으로 사용할 수 있지만,
+ * DOM `BodyInit`과 @types/node의 `Buffer<ArrayBufferLike>` 사이에 제네릭
+ * 불일치가 있어 타입 단언이 필요하다.
+ */
+export function bufferToBody(data: Buffer): BodyInit {
+  return data as unknown as BodyInit
+}
diff --git a/apps/desktop/src/main/services/stt/drivers/AssemblyAIDriver.ts b/apps/desktop/src/main/services/stt/drivers/AssemblyAIDriver.ts
index 0ab8bc1..8de29f7 100644
--- a/apps/desktop/src/main/services/stt/drivers/AssemblyAIDriver.ts
+++ b/apps/desktop/src/main/services/stt/drivers/AssemblyAIDriver.ts
@@ -5,11 +5,21 @@ import { D3ROError, ErrorCode } from '@d3ro/core/errors'
 import type { ISTTDriver } from '../types'
 import type { TranscriptionResult, TranscribeOptions } from '../../LocalSTTService'
 import type { STTProviderConfig } from '@d3ro/core/types'
-import { pcmToWav, createProbeWav } from '../audio-utils'
+import { pcmToWav, createProbeWav, bufferToBody } from '../audio-utils'
 import { getLogger } from '../../LoggerService'
 
 const logger = getLogger('AssemblyAIDriver')
 
+/** AssemblyAI 전사 폴링 응답 (필요한 필드만) */
+interface AssemblyAITranscriptResponse {
+  status: string
+  text?: string
+  words?: Array<{ text: string; start: number; end: number; confidence: number }>
+  language_code?: string
+  audio_duration?: number
+  error?: string
+}
+
 export class AssemblyAIDriver implements ISTTDriver {
   readonly id = 'assemblyai' as const
   readonly name = 'AssemblyAI (Universal-2)'
@@ -38,7 +48,7 @@ export class AssemblyAIDriver implements ISTTDriver {
           Authorization: apiKey,
           'Content-Type': 'application/octet-stream',
         },
-        body: wavBuffer,
+        body: bufferToBody(wavBuffer),
         signal: AbortSignal.timeout(20000),
       })
 
@@ -90,14 +100,7 @@ export class AssemblyAIDriver implements ISTTDriver {
 
       // 3. Poll for result (최대 30초 대기)
       let attempts = 0
-      let fullResult: {
-        status: string
-        text?: string
-        words?: Array<{ text: string; start: number; end: number; confidence: number }>
-        language_code?: string
-        audio_duration?: number
-        error?: string
-      } | null = null
+      let fullResult: AssemblyAITranscriptResponse | null = null
 
       while (attempts < 30) {
         await new Promise((r) => setTimeout(r, 600))
@@ -110,7 +113,7 @@ export class AssemblyAIDriver implements ISTTDriver {
 
         if (!pollRes.ok) continue
 
-        const pollData = (await pollRes.json()) as typeof fullResult
+        const pollData = (await pollRes.json()) as AssemblyAITranscriptResponse
         if (pollData && (pollData.status === 'completed' || pollData.status === 'error')) {
           fullResult = pollData
           break
@@ -166,7 +169,7 @@ export class AssemblyAIDriver implements ISTTDriver {
           Authorization: apiKey,
           'Content-Type': 'application/octet-stream',
         },
-        body: probe,
+        body: bufferToBody(probe),
         signal: AbortSignal.timeout(10000),
       })
 
diff --git a/apps/desktop/src/main/services/stt/drivers/DeepgramDriver.ts b/apps/desktop/src/main/services/stt/drivers/DeepgramDriver.ts
index a689bb8..f9dcb57 100644
--- a/apps/desktop/src/main/services/stt/drivers/DeepgramDriver.ts
+++ b/apps/desktop/src/main/services/stt/drivers/DeepgramDriver.ts
@@ -5,7 +5,7 @@ import { D3ROError, ErrorCode } from '@d3ro/core/errors'
 import type { ISTTDriver } from '../types'
 import type { TranscriptionResult, TranscribeOptions } from '../../LocalSTTService'
 import type { STTProviderConfig } from '@d3ro/core/types'
-import { pcmToWav, createProbeWav } from '../audio-utils'
+import { pcmToWav, createProbeWav, bufferToBody } from '../audio-utils'
 import { getLogger } from '../../LoggerService'
 
 const logger = getLogger('DeepgramDriver')
@@ -54,7 +54,7 @@ export class DeepgramDriver implements ISTTDriver {
           Authorization: `Token ${apiKey}`,
           'Content-Type': 'audio/wav',
         },
-        body: wavBuffer,
+        body: bufferToBody(wavBuffer),
         signal: AbortSignal.timeout(25000),
       })
 
@@ -137,7 +137,7 @@ export class DeepgramDriver implements ISTTDriver {
           Authorization: `Token ${apiKey}`,
           'Content-Type': 'audio/wav',
         },
-        body: probe,
+        body: bufferToBody(probe),
         signal: AbortSignal.timeout(10000),
       })
 
diff --git a/apps/desktop/src/main/utils/safe-filename.ts b/apps/desktop/src/main/utils/safe-filename.ts
new file mode 100644
index 0000000..09048b9
--- /dev/null
+++ b/apps/desktop/src/main/utils/safe-filename.ts
@@ -0,0 +1,30 @@
+// src/main/utils/safe-filename.ts
+// 사용자 입력(제목 등)을 OS가 허용하는 파일명 조각으로 정규화한다.
+// Windows 금지 문자, 제어 문자, 경로 구분자를 '-'로 치환하고 길이를 제한한다.
+
+/** Windows 파일명 금지 문자 (경로 구분자 포함). */
+const UNSAFE_FILENAME_CHARS = '\\/:*?"<>|%'
+
+/**
+ * 제목 같은 임의 문자열을 안전한 파일명 조각으로 변환한다.
+ * @param input 원본 문자열 (null/undefined 허용)
+ * @param fallback 비어 있거나 전부 치환된 경우 사용할 기본값
+ * @param maxLength 최대 길이 (기본 60)
+ */
+export function toSafeFilenameSegment(
+  input: string | null | undefined,
+  fallback: string,
+  maxLength = 60,
+): string {
+  const safe = Array.from(input?.trim() || fallback)
+    .map((character) => (isUnsafeFilenameCharacter(character) ? '-' : character))
+    .slice(0, maxLength)
+    .join('')
+    .trim()
+
+  return safe || fallback
+}
+
+function isUnsafeFilenameCharacter(character: string): boolean {
+  return character.charCodeAt(0) < 0x20 || UNSAFE_FILENAME_CHARS.includes(character)
+}
\ No newline at end of file
diff --git a/apps/desktop/src/main/windows/WindowManager.ts b/apps/desktop/src/main/windows/WindowManager.ts
index 573cc79..6f39eea 100644
--- a/apps/desktop/src/main/windows/WindowManager.ts
+++ b/apps/desktop/src/main/windows/WindowManager.ts
@@ -139,7 +139,7 @@ export function createMainWindow(): BrowserWindow {
     mainWindow = null
   })
 
-  mainWindow.webContents.on('console-message', (event, level, message, line, sourceId) => {
+  mainWindow.webContents.on('console-message', (_event, level, message, line, sourceId) => {
     logger.info(`[Renderer] [${level}] ${message} (${sourceId}:${line})`)
   })
 
diff --git a/apps/desktop/src/renderer/components/AppLayout.tsx b/apps/desktop/src/renderer/components/AppLayout.tsx
index 18d158c..d74f2c8 100644
--- a/apps/desktop/src/renderer/components/AppLayout.tsx
+++ b/apps/desktop/src/renderer/components/AppLayout.tsx
@@ -282,9 +282,9 @@ export function AppLayout(): React.ReactElement {
               bgcolor: d3roPalette.glass.surface,
               transition: 'all 0.18s ease',
               '&:hover': {
-                color: d3roPalette.tag.purpleText,
+                color: d3roPalette.tag.purple,
                 bgcolor: d3roPalette.glass.raised,
-                borderColor: d3roPalette.tag.purpleBorder,
+                borderColor: d3roPalette.tag.purple,
               },
             }}
           >
diff --git a/apps/desktop/src/renderer/components/CodexOAuthGuideModal.tsx b/apps/desktop/src/renderer/components/CodexOAuthGuideModal.tsx
index c41d725..a24f6e4 100644
--- a/apps/desktop/src/renderer/components/CodexOAuthGuideModal.tsx
+++ b/apps/desktop/src/renderer/components/CodexOAuthGuideModal.tsx
@@ -53,7 +53,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
           backgroundImage: 'none',
           border: `1px solid ${d3roPalette.border.default}`,
           boxShadow: d3roShadow.chassis,
-          borderRadius: d3roRadius.md,
+          borderRadius: d3roRadius.inner,
         },
       }}
     >
@@ -139,7 +139,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                     p: 2,
                     bgcolor: d3roPalette.bg.inset,
                     border: `1px solid ${d3roPalette.border.subtle}`,
-                    borderRadius: d3roRadius.sm,
+                    borderRadius: d3roRadius.small,
                   }}
                 >
                   <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', mb: 1 }}>
@@ -157,7 +157,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                         fontWeight: 500,
                         bgcolor: d3roPalette.accent.main,
                         color: d3roPalette.bg.app,
-                        '&:hover': { bgcolor: d3roPalette.accent.hover },
+                        '&:hover': { bgcolor: d3roPalette.accent.light },
                       }}
                     >
                       API Keys 페이지 열기
@@ -174,7 +174,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                     p: 2,
                     bgcolor: d3roPalette.bg.inset,
                     border: `1px solid ${d3roPalette.border.subtle}`,
-                    borderRadius: d3roRadius.sm,
+                    borderRadius: d3roRadius.small,
                   }}
                 >
                   <Typography variant="body2" sx={{ fontWeight: 500, mb: 0.5 }}>
@@ -201,7 +201,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                     p: 2,
                     bgcolor: d3roPalette.bg.inset,
                     border: `1px solid ${d3roPalette.border.subtle}`,
-                    borderRadius: d3roRadius.sm,
+                    borderRadius: d3roRadius.small,
                   }}
                 >
                   <Typography variant="body2" sx={{ fontWeight: 500, mb: 0.5 }}>
@@ -248,7 +248,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                   p: 2,
                   bgcolor: d3roPalette.bg.inset,
                   border: `1px solid ${d3roPalette.border.subtle}`,
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                   mb: 2,
                 }}
               >
@@ -289,7 +289,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                   p: 2,
                   bgcolor: d3roPalette.bg.inset,
                   border: `1px solid ${d3roPalette.border.subtle}`,
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                 }}
               >
                 <Typography variant="body2" sx={{ fontWeight: 500, mb: 1 }}>
@@ -320,7 +320,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                   p: 2,
                   bgcolor: d3roPalette.bg.inset,
                   border: `1px solid ${d3roPalette.border.subtle}`,
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                   display: 'flex',
                   alignItems: 'center',
                   justifyContent: 'space-between',
@@ -352,7 +352,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                   p: 2,
                   bgcolor: d3roPalette.bg.inset,
                   border: `1px solid ${d3roPalette.border.subtle}`,
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                   display: 'flex',
                   alignItems: 'center',
                   justifyContent: 'space-between',
@@ -384,7 +384,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                   p: 2,
                   bgcolor: d3roPalette.bg.inset,
                   border: `1px solid ${d3roPalette.border.subtle}`,
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                   display: 'flex',
                   alignItems: 'center',
                   justifyContent: 'space-between',
@@ -416,7 +416,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
                   p: 2,
                   bgcolor: d3roPalette.bg.inset,
                   border: `1px solid ${d3roPalette.border.subtle}`,
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                   display: 'flex',
                   alignItems: 'center',
                   justifyContent: 'space-between',
@@ -457,7 +457,7 @@ export function CodexOAuthGuideModal({ open, onClose }: CodexOAuthGuideModalProp
             fontSize: d3roTypo.label.size,
             bgcolor: d3roPalette.accent.main,
             color: d3roPalette.bg.app,
-            '&:hover': { bgcolor: d3roPalette.accent.hover },
+            '&:hover': { bgcolor: d3roPalette.accent.light },
           }}
         >
           확인 및 닫기
diff --git a/apps/desktop/src/renderer/components/FileDropZone.tsx b/apps/desktop/src/renderer/components/FileDropZone.tsx
index 31d5209..3436989 100644
--- a/apps/desktop/src/renderer/components/FileDropZone.tsx
+++ b/apps/desktop/src/renderer/components/FileDropZone.tsx
@@ -4,7 +4,7 @@
 import { useState, useEffect, useCallback, useRef } from 'react'
 import { Box, LinearProgress, IconButton, Tooltip } from '@mui/material'
 import { Copy, X, FileUp } from 'lucide-react'
-import { MetalCard, PhosphorText, Led } from '@d3ro/ui/components/ds'
+import { MetalCard, PhosphorText, Led, PhysicalButton } from '@d3ro/ui/components/ds'
 import { d3roPalette, d3roTypo, d3roRadius } from '@d3ro/ui/theme'
 import { useI18n } from '@d3ro/i18n'
 import type {
diff --git a/apps/desktop/src/renderer/components/LicenseTab.tsx b/apps/desktop/src/renderer/components/LicenseTab.tsx
index 59ab5cd..b8966c4 100644
--- a/apps/desktop/src/renderer/components/LicenseTab.tsx
+++ b/apps/desktop/src/renderer/components/LicenseTab.tsx
@@ -46,7 +46,7 @@ export function LicenseTab(): React.ReactElement {
 
       {/* ── 14일 Reverse-Trial 상태 배너 (활성화 시) ── */}
       {licenseInfo?.isTrial && licenseInfo.trialExpiresAt && (
-        <MetalCard sx={{ bgcolor: 'rgba(255, 170, 0, 0.08)', borderColor: d3roPalette.accent.main }}>
+        <MetalCard sx={{ bgcolor: 'var(--d3-status-warning)', borderColor: d3roPalette.accent.main }}>
           <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5 }}>
             <Sparkles size={18} color={d3roPalette.accent.main} />
             <Box sx={{ flex: 1 }}>
diff --git a/apps/desktop/src/renderer/components/OllamaGuideModal.tsx b/apps/desktop/src/renderer/components/OllamaGuideModal.tsx
index 54e1559..6f8d648 100644
--- a/apps/desktop/src/renderer/components/OllamaGuideModal.tsx
+++ b/apps/desktop/src/renderer/components/OllamaGuideModal.tsx
@@ -392,7 +392,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
                   bgcolor: d3roPalette.accent.main,
                   color: d3roPalette.bg.app,
                   fontWeight: 500,
-                  '&:hover': { bgcolor: d3roPalette.accent.hover },
+                  '&:hover': { bgcolor: d3roPalette.accent.light },
                 }}
               >
                 {starting ? '실행 중...' : 'Ollama 자동 실행'}
@@ -410,7 +410,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
         {/* ── Step 1: Ollama 설치 및 기동 ── */}
         <Box sx={{ display: 'flex', flexDirection: 'column', gap: 1 }}>
           <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
-            <Chip label="STEP 1" size="small" sx={{ fontWeight: 500, fontSize: '10px', height: 20, bgcolor: d3roPalette.accent.muted, color: d3roPalette.accent.main }} />
+            <Chip label="STEP 1" size="small" sx={{ fontWeight: 500, fontSize: '10px', height: 20, bgcolor: d3roPalette.accent.dim, color: d3roPalette.accent.main }} />
             <Typography sx={{ ...typoSx('heading'), color: d3roPalette.text.primary }}>
               Ollama 설치 및 백그라운드 실행
             </Typography>
@@ -462,7 +462,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
         <Box sx={{ display: 'flex', flexDirection: 'column', gap: 1.5 }}>
           <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
             <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
-              <Chip label="STEP 2" size="small" sx={{ fontWeight: 500, fontSize: '10px', height: 20, bgcolor: d3roPalette.accent.muted, color: d3roPalette.accent.main }} />
+              <Chip label="STEP 2" size="small" sx={{ fontWeight: 500, fontSize: '10px', height: 20, bgcolor: d3roPalette.accent.dim, color: d3roPalette.accent.main }} />
               <Typography sx={{ ...typoSx('heading'), color: d3roPalette.text.primary }}>
                 한국어 최적화 추천 모델 1-클릭 다운로드
               </Typography>
@@ -564,7 +564,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
                             py: 0.25,
                             bgcolor: d3roPalette.accent.main,
                             color: d3roPalette.bg.app,
-                            '&:hover': { bgcolor: d3roPalette.accent.hover },
+                            '&:hover': { bgcolor: d3roPalette.accent.light },
                           }}
                         >
                           다운로드 (Pull)
@@ -624,7 +624,7 @@ export function OllamaGuideModal({ open, onClose }: OllamaGuideModalProps): Reac
                 minWidth: 100,
                 bgcolor: d3roPalette.accent.main,
                 color: d3roPalette.bg.app,
-                '&:hover': { bgcolor: d3roPalette.accent.hover },
+                '&:hover': { bgcolor: d3roPalette.accent.light },
               }}
             >
               {testing ? '처리 중' : '테스트'}
diff --git a/apps/desktop/src/renderer/components/OnboardingModal.tsx b/apps/desktop/src/renderer/components/OnboardingModal.tsx
index 74029cd..a7aa845 100644
--- a/apps/desktop/src/renderer/components/OnboardingModal.tsx
+++ b/apps/desktop/src/renderer/components/OnboardingModal.tsx
@@ -31,7 +31,7 @@ import {
   ArrowRight,
   ShieldCheck,
 } from 'lucide-react'
-import { d3roPalette, d3roRadius, typoSx, d3roFontMono, d3roFontSans } from '@d3ro/ui/theme'
+import { d3roPalette, d3roRadius, d3roShadow, typoSx, d3roFontMono, d3roFontSans } from '@d3ro/ui/theme'
 import { Led } from '@d3ro/ui/components/ds'
 import type { LLMModel, LLMStatus } from '@d3ro/core/types'
 
@@ -311,7 +311,7 @@ export function OnboardingModal({ open, onClose }: OnboardingModalProps): React.
                     fontWeight: 500,
                     bgcolor: d3roPalette.accent.main,
                     color: d3roPalette.bg.app,
-                    '&:hover': { bgcolor: d3roPalette.accent.hover },
+                    '&:hover': { bgcolor: d3roPalette.accent.light },
                   }}
                 >
                   로컬 AI 모드로 시작
@@ -504,7 +504,7 @@ export function OnboardingModal({ open, onClose }: OnboardingModalProps): React.
                       fontWeight: 500,
                       bgcolor: d3roPalette.accent.main,
                       color: d3roPalette.bg.app,
-                      '&:hover': { bgcolor: d3roPalette.accent.hover },
+                      '&:hover': { bgcolor: d3roPalette.accent.light },
                     }}
                   >
                     {hasInstalledLlm ? 'Gemma 2 (2B) 추가 다운로드' : 'Gemma 2 (2B) 1-클릭 다운로드'}
diff --git a/apps/desktop/src/renderer/components/STTTab.tsx b/apps/desktop/src/renderer/components/STTTab.tsx
index 4bb062c..da7117d 100644
--- a/apps/desktop/src/renderer/components/STTTab.tsx
+++ b/apps/desktop/src/renderer/components/STTTab.tsx
@@ -202,10 +202,10 @@ export function STTTab({ config, updateConfig }: STTTabProps): React.ReactElemen
                 sx={{
                   p: 1.5,
                   cursor: 'pointer',
-                  borderRadius: d3roRadius.sm,
+                  borderRadius: d3roRadius.small,
                   bgcolor: isSelected ? d3roPalette.bg.elevated : d3roPalette.bg.inset,
                   border: isSelected ? `1.5px solid ${d3roPalette.accent.main}` : `1px solid ${d3roPalette.border.subtle}`,
-                  boxShadow: isSelected ? d3roShadow.elevated : 'none',
+                  boxShadow: isSelected ? d3roShadow.card : 'none',
                   transition: 'all 120ms ease-out',
                   display: 'flex',
                   flexDirection: 'column',
@@ -245,7 +245,7 @@ export function STTTab({ config, updateConfig }: STTTabProps): React.ReactElemen
                     height: 18,
                     fontSize: '9px',
                     fontWeight: 500,
-                    bgcolor: isSelected ? d3roPalette.accent.muted : 'transparent',
+                    bgcolor: isSelected ? d3roPalette.accent.dim : 'transparent',
                     color: isSelected ? d3roPalette.accent.main : d3roPalette.text.disabled,
                     border: isSelected ? 'none' : `1px solid ${d3roPalette.border.subtle}`,
                   }}
@@ -263,7 +263,7 @@ export function STTTab({ config, updateConfig }: STTTabProps): React.ReactElemen
           p: 2,
           bgcolor: d3roPalette.bg.inset,
           border: `1px solid ${d3roPalette.border.default}`,
-          borderRadius: d3roRadius.md,
+          borderRadius: d3roRadius.inner,
         }}
       >
         <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', mb: 1.5 }}>
@@ -328,7 +328,7 @@ export function STTTab({ config, updateConfig }: STTTabProps): React.ReactElemen
                       p: 1.5,
                       bgcolor: d3roPalette.bg.elevated,
                       border: `1px solid ${d3roPalette.border.default}`,
-                      borderRadius: d3roRadius.sm,
+                      borderRadius: d3roRadius.small,
                       display: 'flex',
                       alignItems: 'center',
                       justifyContent: 'space-between',
@@ -354,7 +354,7 @@ export function STTTab({ config, updateConfig }: STTTabProps): React.ReactElemen
                         fontWeight: 500,
                         bgcolor: d3roPalette.accent.main,
                         color: d3roPalette.bg.app,
-                        '&:hover': { bgcolor: d3roPalette.accent.hover },
+                        '&:hover': { bgcolor: d3roPalette.accent.light },
                       }}
                     >
                       {isDownloading ? `다운로드 중 (${downloadPercent}%)` : '모델 다운로드'}
@@ -440,7 +440,7 @@ export function STTTab({ config, updateConfig }: STTTabProps): React.ReactElemen
         sx={{
           bgcolor: d3roPalette.bg.inset,
           border: `1px solid ${d3roPalette.border.subtle}`,
-          borderRadius: `${d3roRadius.sm} !important`,
+          borderRadius: `${d3roRadius.small} !important`,
           '&:before': { display: 'none' },
         }}
       >
diff --git a/apps/desktop/src/renderer/components/meeting/MarkdownEditor.tsx b/apps/desktop/src/renderer/components/meeting/MarkdownEditor.tsx
index fb38ddb..a36ff1d 100644
--- a/apps/desktop/src/renderer/components/meeting/MarkdownEditor.tsx
+++ b/apps/desktop/src/renderer/components/meeting/MarkdownEditor.tsx
@@ -1,7 +1,7 @@
 // src/renderer/components/meeting/MarkdownEditor.tsx
 // Phase 14.5: 마크다운 렌더링/편집 토글 컴포넌트
 
-import { useState } from 'react'
+import { useState, useEffect, useCallback } from 'react'
 import { Box } from '@mui/material'
 import { MarkdownRenderer } from './MarkdownRenderer'
 import { PhysicalButton } from '@d3ro/ui/components/ds'
@@ -15,12 +15,26 @@ interface MarkdownEditorProps {
 }
 
 export function MarkdownEditor({
-  content,
+  content: initialContent,
   onChange,
   readOnly = false,
 }: MarkdownEditorProps): React.ReactElement {
   const { t } = useI18n()
   const [preview, setPreview] = useState(true)
+  const [draft, setDraft] = useState(initialContent)
+
+  useEffect(() => {
+    setDraft(initialContent)
+  }, [initialContent])
+
+  const handleTextChange = useCallback(
+    (e: React.ChangeEvent<HTMLTextAreaElement>) => {
+      const val = e.target.value
+      setDraft(val)
+      onChange(val)
+    },
+    [onChange],
+  )
 
   return (
     <Box sx={{ display: 'flex', flexDirection: 'column', height: '100%' }}>
@@ -49,12 +63,12 @@ export function MarkdownEditor({
       {/* 콘텐츠 영역 */}
       <Box sx={{ flex: 1, overflow: 'auto', minHeight: 0 }}>
         {preview || readOnly ? (
-          <MarkdownRenderer content={content} />
+          <MarkdownRenderer content={draft} />
         ) : (
           <Box
             component="textarea"
-            value={content}
-            onChange={(e: React.ChangeEvent<HTMLTextAreaElement>) => onChange(e.target.value)}
+            value={draft}
+            onChange={handleTextChange}
             sx={{
               width: '100%',
               height: '100%',
diff --git a/apps/desktop/src/renderer/components/payment/CheckoutModal.tsx b/apps/desktop/src/renderer/components/payment/CheckoutModal.tsx
index 44f04d3..b73c597 100644
--- a/apps/desktop/src/renderer/components/payment/CheckoutModal.tsx
+++ b/apps/desktop/src/renderer/components/payment/CheckoutModal.tsx
@@ -81,11 +81,11 @@ export function CheckoutModal({
           left: '50%',
           transform: 'translate(-50%, -50%)',
           width: { xs: '90%', sm: 520 },
-          bgcolor: d3roPalette.bg.modal,
+          bgcolor: d3roPalette.bg.card,
           backdropFilter: 'blur(28px)',
           border: `1px solid ${d3roPalette.glass.hairline}`,
           borderRadius: d3roRadius.outer,
-          boxShadow: d3roShadow.modal,
+          boxShadow: d3roShadow.dialog,
           p: 3,
           outline: 'none',
           display: 'flex',
@@ -139,9 +139,9 @@ export function CheckoutModal({
               gap: 1.5
             }}
           >
-            <CheckCircle2 size={48} color={d3roPalette.tag.greenText} />
+            <CheckCircle2 size={48} color={d3roPalette.tag.green} />
             <Typography
-              sx={{ fontFamily: d3roFontSans, fontSize: '18px', fontWeight: 600, color: '#fff' }}
+              sx={{ fontFamily: d3roFontSans, fontSize: '18px', fontWeight: 600, color: 'var(--d3-text-inverse)' }}
             >
               서버에서 구독 활성화를 확인했습니다.
             </Typography>
@@ -155,7 +155,7 @@ export function CheckoutModal({
               sx={{
                 mt: 2,
                 bgcolor: d3roPalette.accent.main,
-                color: '#fff',
+                color: 'var(--d3-text-inverse)',
                 px: 3,
                 borderRadius: '8px'
               }}
@@ -183,8 +183,8 @@ export function CheckoutModal({
                     borderRadius: d3roRadius.inner,
                     border: `1px solid ${tier === candidate ? d3roPalette.accent.main : d3roPalette.glass.hairline}`,
                     bgcolor:
-                      tier === candidate ? 'rgba(59, 130, 246, 0.18)' : 'rgba(255,255,255,0.03)',
-                    color: '#fff',
+                      tier === candidate ? 'var(--d3-accent-glow)' : 'var(--d3-overlay-strong)',
+                    color: 'var(--d3-text-inverse)',
                     fontFamily: d3roFontSans,
                     fontWeight: 500,
                     textTransform: 'none'
@@ -199,7 +199,7 @@ export function CheckoutModal({
               sx={{
                 p: 2,
                 borderRadius: d3roRadius.inner,
-                bgcolor: 'rgba(17, 26, 48, 0.7)',
+                bgcolor: 'var(--d3-bg-card-soft)',
                 border: `1px solid ${d3roPalette.accent.dim}`,
                 display: 'flex',
                 gap: 1.25,
@@ -213,7 +213,7 @@ export function CheckoutModal({
                     fontFamily: d3roFontSans,
                     fontSize: '13px',
                     fontWeight: 500,
-                    color: '#fff'
+                    color: 'var(--d3-text-inverse)'
                   }}
                 >
                   Stripe 보안 결제
@@ -252,7 +252,7 @@ export function CheckoutModal({
                   sx={{
                     py: 1.25,
                     bgcolor: d3roPalette.accent.main,
-                    color: '#fff',
+                    color: 'var(--d3-text-inverse)',
                     fontWeight: 500,
                     fontSize: '13px',
                     borderRadius: '10px',
@@ -279,7 +279,7 @@ export function CheckoutModal({
                     sx={{
                       py: 1.25,
                       bgcolor: d3roPalette.accent.main,
-                      color: '#fff',
+                      color: 'var(--d3-text-inverse)',
                       fontWeight: 500,
                       fontSize: '13px',
                       borderRadius: '10px'
diff --git a/apps/desktop/src/renderer/components/support/SupportModal.tsx b/apps/desktop/src/renderer/components/support/SupportModal.tsx
index ca90917..976b9a1 100644
--- a/apps/desktop/src/renderer/components/support/SupportModal.tsx
+++ b/apps/desktop/src/renderer/components/support/SupportModal.tsx
@@ -7,6 +7,7 @@ import {
   Box,
   Typography,
   Button,
+  IconButton,
   Tabs,
   Tab,
   TextField,
@@ -115,11 +116,11 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
           transform: 'translate(-50%, -50%)',
           width: { xs: '95%', sm: 680 },
           maxHeight: '90vh',
-          bgcolor: d3roPalette.bg.modal,
+          bgcolor: d3roPalette.bg.card,
           backdropFilter: 'blur(28px)',
           border: `1px solid ${d3roPalette.glass.hairline}`,
           borderRadius: d3roRadius.outer,
-          boxShadow: d3roShadow.modal,
+          boxShadow: d3roShadow.dialog,
           p: 3,
           outline: 'none',
           display: 'flex',
@@ -131,14 +132,19 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
         {/* Header */}
         <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', borderBottom: `1px solid ${d3roPalette.glass.hairline}`, pb: 1.5 }}>
           <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5 }}>
-            <Headphones size={20} color={d3roPalette.tag.purpleText} />
+            <Headphones size={20} color={d3roPalette.tag.purple} />
             <Typography sx={{ fontFamily: d3roFontSans, fontSize: '17px', fontWeight: 600, color: d3roPalette.text.primary }}>
               D3RO Voice Customer Assistance (CA/CS)
             </Typography>
           </Box>
-          <Box onClick={onClose} sx={{ cursor: 'pointer', color: d3roPalette.text.dimLabel, '&:hover': { color: d3roPalette.text.primary } }}>
+          <IconButton
+            size="small"
+            onClick={onClose}
+            aria-label="닫기"
+            sx={{ cursor: 'pointer', color: d3roPalette.text.dimLabel, '&:hover': { color: d3roPalette.text.primary } }}
+          >
             <X size={18} />
-          </Box>
+          </IconButton>
         </Box>
 
         {/* Navigation Tabs */}
@@ -157,9 +163,9 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
               fontWeight: 600,
               color: d3roPalette.text.secondary,
               textTransform: 'none',
-              '&.Mui-selected': { color: d3roPalette.tag.purpleText },
+              '&.Mui-selected': { color: d3roPalette.tag.purple },
             },
-            '& .MuiTabs-indicator': { bgcolor: d3roPalette.tag.purpleText },
+            '& .MuiTabs-indicator': { bgcolor: d3roPalette.tag.purple },
           }}
         >
           <Tab icon={<Bot size={14} />} iconPosition="start" label="AI 어시스턴트" />
@@ -177,7 +183,7 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
                 overflowY: 'auto',
                 p: 2,
                 borderRadius: d3roRadius.inner,
-                bgcolor: 'rgba(10, 14, 28, 0.7)',
+                bgcolor: 'var(--d3-bg-inset-soft)',
                 border: `1px solid ${d3roPalette.glass.hairline}`,
                 display: 'flex',
                 flexDirection: 'column',
@@ -192,8 +198,8 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
                     maxWidth: '85%',
                     p: 1.5,
                     borderRadius: msg.role === 'user' ? '14px 14px 2px 14px' : '14px 14px 14px 2px',
-                    bgcolor: msg.role === 'user' ? d3roPalette.accent.main : 'rgba(26, 38, 68, 0.8)',
-                    color: '#ffffff',
+                    bgcolor: msg.role === 'user' ? d3roPalette.accent.main : 'var(--d3-bg-raised-soft)',
+                    color: 'var(--d3-text-inverse)',
                     fontSize: '12px',
                     fontFamily: d3roFontSans,
                     lineHeight: 1.5,
@@ -216,21 +222,21 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
               <Button
                 size="small"
                 onClick={() => handleAskAI('마이크 인식이 안 돼요')}
-                sx={{ fontSize: '10px', textTransform: 'none', color: d3roPalette.text.secondary, bgcolor: 'rgba(255,255,255,0.05)', borderRadius: '999px', px: 1.5, flexShrink: 0 }}
+                sx={{ fontSize: '10px', textTransform: 'none', color: d3roPalette.text.secondary, bgcolor: 'var(--d3-overlay-strong)', borderRadius: '999px', px: 1.5, flexShrink: 0 }}
               >
                 🎤 마이크 인식 오류
               </Button>
               <Button
                 size="small"
                 onClick={() => handleAskAI('CUDA GPU 가속 설정 방법')}
-                sx={{ fontSize: '10px', textTransform: 'none', color: d3roPalette.text.secondary, bgcolor: 'rgba(255,255,255,0.05)', borderRadius: '999px', px: 1.5, flexShrink: 0 }}
+                sx={{ fontSize: '10px', textTransform: 'none', color: d3roPalette.text.secondary, bgcolor: 'var(--d3-overlay-strong)', borderRadius: '999px', px: 1.5, flexShrink: 0 }}
               >
                 ⚡ CUDA GPU 가속
               </Button>
               <Button
                 size="small"
                 onClick={() => handleAskAI('환불 신청 규정')}
-                sx={{ fontSize: '10px', textTransform: 'none', color: d3roPalette.text.secondary, bgcolor: 'rgba(255,255,255,0.05)', borderRadius: '999px', px: 1.5, flexShrink: 0 }}
+                sx={{ fontSize: '10px', textTransform: 'none', color: d3roPalette.text.secondary, bgcolor: 'var(--d3-overlay-strong)', borderRadius: '999px', px: 1.5, flexShrink: 0 }}
               >
                 💳 환불 신청 규정
               </Button>
@@ -247,8 +253,8 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
                 onKeyDown={(e) => e.key === 'Enter' && handleAskAI()}
                 sx={{
                   '& .MuiInputBase-root': {
-                    bgcolor: 'rgba(10, 14, 28, 0.9)',
-                    color: '#fff',
+                    bgcolor: 'var(--d3-bg-inset-soft)',
+                    color: 'var(--d3-text-inverse)',
                     fontSize: '12px',
                     fontFamily: d3roFontSans,
                     borderRadius: '10px',
@@ -258,14 +264,14 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
               <Button
                 onClick={() => handleAskAI()}
                 sx={{
-                  bgcolor: d3roPalette.tag.purpleText,
-                  color: '#fff',
+                  bgcolor: d3roPalette.tag.purple,
+                  color: 'var(--d3-text-inverse)',
                   px: 2.5,
                   borderRadius: '10px',
                   fontFamily: d3roFontSans,
                   fontWeight: 500,
                   fontSize: '12px',
-                  '&:hover': { bgcolor: '#9333ea' },
+                  '&:hover': { bgcolor: 'var(--d3-tag-purple)' },
                 }}
               >
                 <Send size={14} />
@@ -287,8 +293,8 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
               }}
               sx={{
                 '& .MuiInputBase-root': {
-                  bgcolor: 'rgba(10, 14, 28, 0.9)',
-                  color: '#fff',
+                  bgcolor: 'var(--d3-bg-inset-soft)',
+                  color: 'var(--d3-text-inverse)',
                   fontSize: '12px',
                   borderRadius: '10px',
                 },
@@ -297,7 +303,7 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
 
             <Box sx={{ flex: 1, overflowY: 'auto', display: 'flex', flexDirection: 'column', gap: 1.5, pr: 0.5 }}>
               {filteredFaqs.map((faq, idx) => (
-                <Box key={idx} sx={{ p: 2, borderRadius: d3roRadius.inner, bgcolor: 'rgba(17, 26, 48, 0.7)', border: `1px solid ${d3roPalette.glass.hairline}` }}>
+                <Box key={idx} sx={{ p: 2, borderRadius: d3roRadius.inner, bgcolor: 'var(--d3-bg-card-soft)', border: `1px solid ${d3roPalette.glass.hairline}` }}>
                   <Typography sx={{ fontFamily: d3roFontSans, fontSize: '13px', fontWeight: 500, color: d3roPalette.text.primary, mb: 0.75 }}>
                     Q. {faq.q}
                   </Typography>
@@ -315,8 +321,8 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
           <Box sx={{ height: 420, overflowY: 'auto' }}>
             {ticketSubmitted ? (
               <Box sx={{ textAlign: 'center', py: 6, display: 'flex', flexDirection: 'column', alignItems: 'center', gap: 1.5 }}>
-                <CheckCircle size={48} color={d3roPalette.tag.greenText} />
-                <Typography sx={{ fontFamily: d3roFontSans, fontSize: '18px', fontWeight: 600, color: '#fff' }}>
+                <CheckCircle size={48} color={d3roPalette.tag.green} />
+                <Typography sx={{ fontFamily: d3roFontSans, fontSize: '18px', fontWeight: 600, color: 'var(--d3-text-inverse)' }}>
                   티켓이 성공적으로 접수되었습니다!
                 </Typography>
                 <Typography sx={{ fontFamily: d3roFontMono, fontSize: '12px', color: d3roPalette.accent.light }}>
@@ -348,7 +354,7 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
                 <TextField size="small" label="문의 제목" placeholder="문제를 요약해 주세요" required sx={{ '& .MuiInputBase-root': { fontSize: '12px' } }} />
                 <TextField multiline rows={3} size="small" label="상세 내용" placeholder="오류 발생 상황을 기재해 주세요..." required sx={{ '& .MuiInputBase-root': { fontSize: '12px' } }} />
 
-                <Box sx={{ p: 1.5, borderRadius: '8px', bgcolor: 'rgba(59, 130, 246, 0.1)', border: `1px solid ${d3roPalette.accent.dim}`, display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
+                <Box sx={{ p: 1.5, borderRadius: '8px', bgcolor: 'var(--d3-accent-glow)', border: `1px solid ${d3roPalette.accent.dim}`, display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
                   <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
                     <Activity size={14} color={d3roPalette.accent.light} />
                     <Typography sx={{ fontFamily: d3roFontSans, fontSize: '11px', color: d3roPalette.accent.light }}>
@@ -360,7 +366,7 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
                   </Typography>
                 </Box>
 
-                <Button type="submit" sx={{ py: 1, bgcolor: d3roPalette.tag.purpleText, color: '#fff', fontWeight: 500, fontSize: '12px', borderRadius: '10px', '&:hover': { bgcolor: '#9333ea' } }}>
+                <Button type="submit" sx={{ py: 1, bgcolor: d3roPalette.tag.purple, color: 'var(--d3-text-inverse)', fontWeight: 500, fontSize: '12px', borderRadius: '10px', '&:hover': { bgcolor: 'var(--d3-tag-purple)' } }}>
                   티켓 접수하기
                 </Button>
               </form>
@@ -370,7 +376,7 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
 
         {/* TAB 3: 7-DAY REFUND CHECKER */}
         {tabIndex === 3 && (
-          <Box sx={{ height: 420, display: 'flex', flexDirection: 'column', justifyContent: 'space-between', p: 2, bgcolor: 'rgba(10, 14, 28, 0.7)', borderRadius: d3roRadius.inner }}>
+          <Box sx={{ height: 420, display: 'flex', flexDirection: 'column', justifyContent: 'space-between', p: 2, bgcolor: 'var(--d3-bg-inset-soft)', borderRadius: d3roRadius.inner }}>
             <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2 }}>
               <Typography sx={{ fontFamily: d3roFontSans, fontSize: '14px', fontWeight: 500, color: d3roPalette.text.primary }}>
                 7일 이내 무조건 100% 자동 환불 확인
@@ -380,19 +386,19 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
               </Typography>
 
               {refundStatus === 'eligible' && (
-                <Box sx={{ p: 2, borderRadius: '10px', bgcolor: 'rgba(16, 185, 129, 0.15)', border: '1px solid rgba(16, 185, 129, 0.3)', display: 'flex', flexDirection: 'column', gap: 1 }}>
-                  <Typography sx={{ fontFamily: d3roFontSans, fontSize: '13px', fontWeight: 500, color: d3roPalette.tag.greenText }}>
+                <Box sx={{ p: 2, borderRadius: '10px', bgcolor: 'var(--d3-status-success)', border: '1px solid var(--d3-status-success)', display: 'flex', flexDirection: 'column', gap: 1 }}>
+                  <Typography sx={{ fontFamily: d3roFontSans, fontSize: '13px', fontWeight: 500, color: d3roPalette.tag.green }}>
                     ✓ 100% 전액 환불 대상입니다!
                   </Typography>
-                  <Typography sx={{ fontFamily: d3roFontMono, fontSize: '11px', color: '#fff' }}>
+                  <Typography sx={{ fontFamily: d3roFontMono, fontSize: '11px', color: 'var(--d3-text-inverse)' }}>
                     • 결제일: 최근 2일 전 (자격 충족)
                   </Typography>
-                  <Typography sx={{ fontFamily: d3roFontMono, fontSize: '11px', color: '#fff' }}>
+                  <Typography sx={{ fontFamily: d3roFontMono, fontSize: '11px', color: 'var(--d3-text-inverse)' }}>
                     • 클라우드 사용량: 0% (자격 충족)
                   </Typography>
                   <Button
                     onClick={() => alert('토스페이먼츠 / Stripe 결제 취소가 접수되었습니다. 영업일 기준 2~3일 내 카드사 취소 처리됩니다.')}
-                    sx={{ mt: 1, bgcolor: d3roPalette.tag.greenText, color: '#030712', fontWeight: 500, fontSize: '12px', borderRadius: '8px' }}
+                    sx={{ mt: 1, bgcolor: d3roPalette.tag.green, color: 'var(--d3-scrim)', fontWeight: 500, fontSize: '12px', borderRadius: '8px' }}
                   >
                     즉시 전액 환불 승인
                   </Button>
@@ -406,7 +412,7 @@ export function SupportModal({ open, onClose }: SupportModalProps): React.ReactE
                 sx={{
                   py: 1.2,
                   bgcolor: d3roPalette.accent.main,
-                  color: '#fff',
+                  color: 'var(--d3-text-inverse)',
                   fontWeight: 500,
                   fontSize: '12px',
                   borderRadius: '10px',
diff --git a/apps/desktop/src/renderer/hooks/useLicenseState.ts b/apps/desktop/src/renderer/hooks/useLicenseState.ts
index 692ad95..212eedb 100644
--- a/apps/desktop/src/renderer/hooks/useLicenseState.ts
+++ b/apps/desktop/src/renderer/hooks/useLicenseState.ts
@@ -79,7 +79,7 @@ export function useLicenseState(): LicenseState {
     cloud,
     currentTier,
     isFree: currentTier === 'free',
-    isPro: currentTier === 'pro',
+    isPro: currentTier !== 'free',
     handleUpgrade,
     handleOpenBilling,
     openCloudSettings,
diff --git a/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx b/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx
index c9284c7..1bc4639 100644
--- a/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx
+++ b/apps/desktop/src/renderer/pages/KnowledgeBasePage.tsx
@@ -21,6 +21,7 @@ export function KnowledgeBasePage(): React.ReactElement {
   const [indexProgress, setIndexProgress] = useState<RAGIndexProgress | null>(null)
   const [adding, setAdding] = useState(false)
   const [addError, setAddError] = useState<string | null>(null)
+  const [queryError, setQueryError] = useState<string | null>(null)
 
   const loadDocuments = useCallback(async () => {
     setLoading(true)
@@ -36,6 +37,9 @@ export function KnowledgeBasePage(): React.ReactElement {
   useEffect(() => {
     const unsubProgress = window.electronAPI.rag.onIndexProgress((data) => {
       setIndexProgress(data)
+      if (data.currentChunk <= 1) {
+        loadDocuments()
+      }
     })
     const unsubComplete = window.electronAPI.rag.onIndexComplete(() => {
       setIndexProgress(null)
@@ -85,9 +89,12 @@ export function KnowledgeBasePage(): React.ReactElement {
     if (!query.trim()) return
     setQuerying(true)
     setResult(null)
+    setQueryError(null)
     const resp = await window.electronAPI.rag.query({ query: query.trim() })
     if (resp.success) {
       setResult(resp.data)
+    } else {
+      setQueryError(resp.error?.message || '검색 중 오류가 발생했습니다.')
     }
     setQuerying(false)
   }, [query])
@@ -231,6 +238,15 @@ export function KnowledgeBasePage(): React.ReactElement {
           </Box>
         )}
 
+        {queryError && (
+          <Box sx={{ mt: 2.5, p: 2, borderRadius: d3roRadius.inner, bgcolor: d3roPalette.bg.inset, border: `1px solid ${d3roPalette.tag.redBg}`, display: 'flex', alignItems: 'center', gap: 1.5 }}>
+            <Led color="red" />
+            <PhosphorText variant="body" sx={{ color: d3roPalette.tag.red, fontSize: '13px' }}>
+              {queryError}
+            </PhosphorText>
+          </Box>
+        )}
+
         {result && (
           <Box sx={{ mt: 3, pt: 2.5, borderTop: `1px solid ${d3roPalette.glass.hairline}` }}>
             <Box sx={{ display: 'flex', alignItems: 'center', gap: 1, mb: 1.5 }}>
diff --git a/apps/desktop/src/renderer/pages/MeetingModePage.tsx b/apps/desktop/src/renderer/pages/MeetingModePage.tsx
index 80e93e1..d43f553 100644
--- a/apps/desktop/src/renderer/pages/MeetingModePage.tsx
+++ b/apps/desktop/src/renderer/pages/MeetingModePage.tsx
@@ -428,7 +428,7 @@ export function MeetingModePage(): React.ReactElement {
           sx={{
             p: 2,
             bgcolor: d3roPalette.bg.inset,
-            borderRadius: d3roRadius.md,
+            borderRadius: d3roRadius.inner,
             border: `1px solid ${d3roPalette.border.subtle}`,
           }}
         >
@@ -475,7 +475,7 @@ export function MeetingModePage(): React.ReactElement {
           sx={{
             color: d3roPalette.text.secondary,
             borderColor: d3roPalette.border.default,
-            borderRadius: d3roRadius.sm,
+            borderRadius: d3roRadius.small,
             fontSize: '12px',
           }}
         >
diff --git a/apps/desktop/src/renderer/popups/command-popup/script.js b/apps/desktop/src/renderer/popups/command-popup/script.js
index f40a72b..d41255b 100644
--- a/apps/desktop/src/renderer/popups/command-popup/script.js
+++ b/apps/desktop/src/renderer/popups/command-popup/script.js
@@ -33,7 +33,7 @@
 
     if (commands.length === 0) {
       var empty = document.createElement('div')
-      empty.style.cssText = 'color: rgba(255,255,255,0.4); font-size: 13px; text-align: center; padding: 24px 16px;'
+      empty.style.cssText = 'color: var(--d3-overlay-strong); font-size: 13px; text-align: center; padding: 24px 16px;'
       empty.textContent = i18nStrings.noCommands || 'No commands'
       itemsContainer.appendChild(empty)
       return
diff --git a/apps/desktop/tests/e2e/red_team_cycle1.spec.ts b/apps/desktop/tests/e2e/red_team_cycle1.spec.ts
new file mode 100644
index 0000000..2df0f24
--- /dev/null
+++ b/apps/desktop/tests/e2e/red_team_cycle1.spec.ts
@@ -0,0 +1,327 @@
+// apps/desktop/tests/e2e/red_team_cycle1.spec.ts
+// Extreme Red Team: Headful Deep Interactive Testing for Cycle 1 (Core CRUD)
+
+import { test, expect, _electron as electron, type Page, type ElectronApplication } from '@playwright/test';
+import * as fs from 'fs';
+import * as path from 'path';
+
+const SCREENSHOT_DIR = 'C:/Users/encep/.gemini/antigravity/brain/bbff18a3-721d-4c43-989f-1d6964e15be7/screenshots';
+
+test.describe('Extreme Red Team - Cycle 1: Core CRUD & State Integrity', () => {
+  test.describe.configure({ mode: 'serial' });
+
+  let electronApp: ElectronApplication;
+  let window: Page;
+  const consoleErrors: string[] = [];
+  const uncaughtExceptions: string[] = [];
+
+  test.beforeAll(async () => {
+    if (!fs.existsSync(SCREENSHOT_DIR)) {
+      fs.mkdirSync(SCREENSHOT_DIR, { recursive: true });
+    }
+
+    const testUserDataDir = path.join(
+      'C:/Users/encep/AppData/Local/Temp',
+      'playwright-redteam-cycle1-' + Date.now()
+    );
+
+    electronApp = await electron.launch({
+      args: [
+        'out/main/index.js',
+        '--disable-gpu',
+        '--no-sandbox',
+        `--user-data-dir=${testUserDataDir}`,
+      ],
+      env: {
+        ...process.env,
+        NODE_ENV: 'test',
+      },
+    });
+
+    // Find main window (skip popups like recording-tip, caption-overlay, etc.)
+    for (let i = 0; i < 50; i++) {
+      for (const w of electronApp.windows()) {
+        try {
+          const url = w.url();
+          if (url && url.includes('index.html') && !url.includes('popups/')) {
+            window = w;
+            break;
+          }
+        } catch {
+          // window might be navigating
+        }
+      }
+      if (window) break;
+      await new Promise((r) => setTimeout(r, 400));
+    }
+
+    if (!window) {
+      window = electronApp.windows()[0] || (await electronApp.firstWindow());
+    }
+
+    await window.waitForLoadState('domcontentloaded');
+
+    // Attach Error Sentinels
+    window.on('pageerror', (err) => {
+      const msg = `[PAGE_ERROR] ${err.message}\n${err.stack || ''}`;
+      uncaughtExceptions.push(msg);
+      // eslint-disable-next-line no-console
+      console.error(msg);
+    });
+
+    window.on('console', (msg) => {
+      if (msg.type() === 'error') {
+        const text = msg.text();
+        // Filter out benign CSP dev warnings
+        if (!text.includes('Electron Security Warning') && !text.includes('Content Security Policy')) {
+          consoleErrors.push(text);
+        }
+      }
+    });
+
+    // Bypass Onboarding modal for testing CRUD
+    await window.evaluate(async () => {
+      if (window.electronAPI?.config) {
+        await window.electronAPI.config.set({ key: 'onboardingCompleted', value: true });
+        await window.electronAPI.config.set({ key: 'appUsageMode', value: 'online' });
+        await window.electronAPI.config.set({ key: 'llmBackend', value: 'online' });
+      }
+    });
+
+    await window.waitForTimeout(500);
+    await window.reload();
+    await window.waitForLoadState('domcontentloaded');
+    await window.waitForTimeout(1000);
+  });
+
+  test.afterAll(async () => {
+    if (electronApp) {
+      await electronApp.close();
+    }
+  });
+
+  test('RT-01: Full Navigation Across All Primary Sidebar Routes', async () => {
+    // 1. Dashboard
+    await window.locator('text=/^(Dashboard|대시보드)$/').first().click();
+    await expect(window.locator('text=/^(Current Backend|현재 백엔드)$/').first()).toBeVisible({ timeout: 5000 });
+    await window.screenshot({ path: path.join(SCREENSHOT_DIR, 'rt01_01_dashboard.png') });
+
+    // 2. History
+    await window.locator('text=/^(History|히스토리|기록)$/').first().click();
+    await expect(window.locator('text=/^(History|히스토리|변환 기록)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 3. Dictionary
+    await window.locator('text=/^(Dictionary|사전|단어장)$/').first().click();
+    await expect(window.locator('text=/^(Custom Dictionary|커스텀 사전|단어장)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 4. Commands
+    await window.locator('text=/^(Commands|명령어)$/').first().click();
+    await expect(window.locator('text=/^(LLM Commands|LLM 명령어)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 5. Voice Conversation
+    await window.locator('text=/^(Conversation|대화|음성 대화)$/').first().click();
+    await expect(window.locator('text=/^(Voice Conversation|음성 대화)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 6. Knowledge Base
+    await window.locator('text=/^(Knowledge|지식 베이스)$/').first().click();
+    await expect(window.locator('text=/^(Knowledge Base|지식 베이스)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 7. Meeting Mode
+    await window.locator('text=/^(Meeting|회의|회의 모드)$/').first().click();
+    await expect(window.locator('text=/^(Meeting Mode|회의 모드)$/').first()).toBeVisible({ timeout: 5000 });
+
+    expect(uncaughtExceptions).toHaveLength(0);
+  });
+
+  test('RT-02: Dictionary Deep CRUD, Boundary Validation & Search Interaction', async () => {
+    // Navigate to Dictionary Tab
+    await window.locator('text=/^(Dictionary|사전|단어장)$/').first().click();
+    await expect(window.locator('text=/^(Custom Dictionary|커스텀 사전|단어장)$/').first()).toBeVisible();
+
+    // Click Add Word button (PhysicalButton tone="accent")
+    const addBtn = window.locator('header button:has-text("추가"), header button:has-text("Add"), button:has-text("추가"), button:has-text("Add")').first();
+    await expect(addBtn).toBeVisible({ timeout: 5000 });
+    await addBtn.click();
+    await window.waitForTimeout(500);
+
+    // Verify Add Dialog opens
+    const dialogTitle = window.locator('text=/^(단어 추가|Add Word)$/').first();
+    await expect(dialogTitle).toBeVisible({ timeout: 5000 });
+
+    // Test Boundary: Empty input should disable save button
+    const saveBtn = window.locator('div[role="dialog"] button:has-text("저장"), div[role="dialog"] button:has-text("Save")').first();
+    await expect(saveBtn).toBeDisabled();
+
+    // Fill valid data
+    const wordInput = window.locator('div[role="dialog"] input').first();
+    const pronInput = window.locator('div[role="dialog"] input').nth(1);
+    
+    await wordInput.fill('D3RO_Voice_RedTeam_Keyword');
+    await pronInput.fill('디쓰리오 보이스 레드팀 키워드');
+    await expect(saveBtn).toBeEnabled();
+
+    // Save
+    await saveBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify new word appears in the list
+    const createdItem = window.locator('text=D3RO_Voice_RedTeam_Keyword').first();
+    await expect(createdItem).toBeVisible({ timeout: 5000 });
+    await window.screenshot({ path: path.join(SCREENSHOT_DIR, 'rt02_01_dict_created.png') });
+
+    // Test Search Functionality
+    const searchInput = window.locator('input[placeholder*="검색"], input[placeholder*="Search"]').first();
+    await searchInput.fill('RedTeam');
+    await window.waitForTimeout(400);
+    await expect(createdItem).toBeVisible();
+
+    await searchInput.fill('NonExistentKeywordXYZ999');
+    await window.waitForTimeout(400);
+    await expect(window.locator('text=D3RO_Voice_RedTeam_Keyword')).not.toBeVisible();
+    await expect(window.locator('text=/^(검색 결과 없음|검색 결과가 없습니다|일치하는 단어가 없습니다|No results)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // Clear search
+    await searchInput.fill('');
+    await window.waitForTimeout(400);
+    await expect(createdItem).toBeVisible();
+
+    // Test Edit
+    const editBtn = window.locator('button[aria-label="편집"], button[aria-label="Edit"]').first();
+    await expect(editBtn).toBeVisible({ timeout: 5000 });
+    await editBtn.click();
+    await window.waitForTimeout(400);
+
+    // Verify Edit Dialog opens
+    await expect(window.locator('text=/^(단어 편집|단어 수정|Edit Word)$/').first()).toBeVisible({ timeout: 5000 });
+    const editWordInput = window.locator('div[role="dialog"] input').first();
+    await editWordInput.fill('D3RO_Voice_RedTeam_Keyword_MOD');
+    const editSaveBtn = window.locator('div[role="dialog"] button:has-text("저장"), div[role="dialog"] button:has-text("Save")').first();
+    await editSaveBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify edited word appears
+    const editedItem = window.locator('text=D3RO_Voice_RedTeam_Keyword_MOD').first();
+    await expect(editedItem).toBeVisible({ timeout: 5000 });
+
+    // Test Delete
+    const deleteBtn = window.locator('button[aria-label="삭제"], button[aria-label="Delete"]').first();
+    await expect(deleteBtn).toBeVisible({ timeout: 5000 });
+    await deleteBtn.click();
+    await window.waitForTimeout(700);
+
+    // Verify deleted item is gone
+    await expect(window.locator('text=D3RO_Voice_RedTeam_Keyword_MOD')).not.toBeVisible();
+
+    // Test Adversarial Unicode & Long Text Entry
+    await addBtn.click();
+    await window.waitForTimeout(500);
+    const complexInput = '🔥⚡ 레드팀 极限 测试 12345 🚀🤖 (Special!@#$%)';
+    await wordInput.fill(complexInput);
+    await pronInput.fill('특수문자 발음');
+    await saveBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify complex item rendered safely without unhandled error
+    const complexItem = window.locator(`text=${complexInput}`).first();
+    await expect(complexItem).toBeVisible({ timeout: 5000 });
+
+    // Cleanup complex item
+    const complexDeleteBtn = window.locator('button[aria-label="삭제"], button[aria-label="Delete"]').first();
+    await complexDeleteBtn.click();
+    await window.waitForTimeout(700);
+    await expect(complexItem).not.toBeVisible();
+
+    expect(uncaughtExceptions).toHaveLength(0);
+  });
+
+  test('RT-03: LLM Commands Deep CRUD, Activation Toggle & Interactive Form Verification', async () => {
+    // Navigate to Commands Tab
+    await window.locator('text=/^(Commands|명령어)$/').first().click();
+    await expect(window.locator('text=/^(LLM Commands|LLM 명령어)$/').first()).toBeVisible();
+
+    // Click Add Command button
+    const addCommandBtn = window.locator('header button:has-text("추가"), header button:has-text("Add"), button:has-text("추가"), button:has-text("Add")').first();
+    await expect(addCommandBtn).toBeVisible({ timeout: 5000 });
+    await addCommandBtn.click();
+    await window.waitForTimeout(500);
+
+    // Verify Dialog opens
+    const dialogTitle = window.locator('text=/^(명령어 추가|Add Command)$/').first();
+    await expect(dialogTitle).toBeVisible({ timeout: 5000 });
+
+    // Fill Command Form
+    const nameInput = window.locator('div[role="dialog"] input').first();
+    const descInput = window.locator('div[role="dialog"] input').nth(1);
+    const promptInput = window.locator('div[role="dialog"] textarea').first();
+
+    await nameInput.fill('RT_BulletPoints_Custom');
+    await descInput.fill('레드팀 불릿포인트 요약 테스트');
+    await promptInput.fill('다음 음성 텍스트를 글머리 기호(bullet points)로 간결하게 요약해주세요:\n\n{text}');
+
+    const saveBtn = window.locator('div[role="dialog"] button:has-text("저장"), div[role="dialog"] button:has-text("Save")').first();
+    await saveBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify card is added
+    const createdCmd = window.locator('text=RT_BulletPoints_Custom').first();
+    await expect(createdCmd).toBeVisible({ timeout: 5000 });
+    await window.screenshot({ path: path.join(SCREENSHOT_DIR, 'rt03_01_command_created.png') });
+
+    // Test Edit Command
+    const editBtn = window.getByRole('button', { name: '편집' }).last();
+    await expect(editBtn).toBeVisible({ timeout: 5000 });
+    await editBtn.click();
+    await window.waitForTimeout(400);
+
+    await expect(window.getByRole('dialog')).toBeVisible({ timeout: 5000 });
+    const editNameInput = window.getByRole('dialog').locator('input').first();
+    await editNameInput.fill('RT_BulletPoints_Custom_MOD');
+    await window.getByRole('dialog').getByRole('button', { name: '저장' }).click();
+    await window.waitForTimeout(600);
+
+    // Verify modified command
+    const editedCmd = window.locator('text=RT_BulletPoints_Custom_MOD').first();
+    await expect(editedCmd).toBeVisible({ timeout: 5000 });
+
+    // Delete Command
+    const deleteBtn = window.getByRole('button', { name: '삭제' }).first();
+    await expect(deleteBtn).toBeVisible({ timeout: 5000 });
+    await deleteBtn.click();
+    await window.waitForTimeout(700);
+
+    // Verify deleted
+    await expect(window.locator('text=RT_BulletPoints_Custom_MOD')).not.toBeVisible();
+
+    expect(uncaughtExceptions).toHaveLength(0);
+  });
+
+  test('RT-04: History Search, Filter and Card Interaction Integrity', async () => {
+    // Navigate to History Tab
+    await window.locator('text=/^(History|히스토리|기록)$/').first().click();
+    await expect(window.locator('text=/^(History|히스토리|변환 기록)$/').first()).toBeVisible();
+
+    // Verify Search Input exists and accepts query
+    const searchInput = window.locator('input[placeholder*="검색"], input[placeholder*="Search"]').first();
+    await expect(searchInput).toBeVisible();
+    await searchInput.fill('오늘');
+    await window.waitForTimeout(300);
+    await searchInput.fill('');
+    await window.waitForTimeout(300);
+
+    await window.screenshot({ path: path.join(SCREENSHOT_DIR, 'rt04_01_history_view.png') });
+    expect(uncaughtExceptions).toHaveLength(0);
+  });
+
+  test('RT-05: Dashboard Health & Stat Widgets Non-Crashing Check', async () => {
+    // Navigate to Dashboard Tab
+    await window.locator('text=/^(Dashboard|대시보드)$/').first().click();
+    await expect(window.locator('text=/^(Current Backend|현재 백엔드)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // Check stats and status widgets
+    await expect(window.locator('text=/^(전사 기록|최근 변환 기록|최근 전사|Recent Transcriptions)/').first()).toBeVisible({ timeout: 5000 });
+    await expect(window.locator('text=/^(시스템 정상|System OK|정상)/').first()).toBeVisible({ timeout: 5000 });
+
+    await window.screenshot({ path: path.join(SCREENSHOT_DIR, 'rt05_01_dashboard_verified.png') });
+    expect(uncaughtExceptions).toHaveLength(0);
+  });
+});
diff --git a/apps/desktop/tests/e2e/red_team_cycle2.spec.ts b/apps/desktop/tests/e2e/red_team_cycle2.spec.ts
new file mode 100644
index 0000000..d6e14ab
--- /dev/null
+++ b/apps/desktop/tests/e2e/red_team_cycle2.spec.ts
@@ -0,0 +1,457 @@
+// apps/desktop/tests/e2e/red_team_cycle2.spec.ts
+// Extreme Red Team: Headful Deep Interactive Testing for Cycle 2 (AI Pipelines & Workspaces)
+
+import { test, expect, _electron as electron, type Page, type ElectronApplication } from '@playwright/test';
+import * as fs from 'fs';
+import * as path from 'path';
+
+const SCREENSHOT_DIR = 'C:/Users/encep/.gemini/antigravity/brain/bbff18a3-721d-4c43-989f-1d6964e15be7/screenshots';
+
+test.describe('Extreme Red Team - Cycle 2: AI Pipelines & Advanced Workspaces', () => {
+  test.describe.configure({ mode: 'serial' });
+
+  let electronApp: ElectronApplication;
+  let window: Page;
+  const consoleErrors: string[] = [];
+  const uncaughtExceptions: string[] = [];
+  let testUserDataDir: string;
+
+  test.beforeAll(async () => {
+    test.setTimeout(60000);
+    if (!fs.existsSync(SCREENSHOT_DIR)) {
+      fs.mkdirSync(SCREENSHOT_DIR, { recursive: true });
+    }
+
+    testUserDataDir = path.join(
+      'C:/Users/encep/AppData/Local/Temp',
+      'playwright-redteam-cycle2-' + Date.now()
+    );
+
+    electronApp = await electron.launch({
+      args: [
+        'out/main/index.js',
+        '--disable-gpu',
+        '--no-sandbox',
+        `--user-data-dir=${testUserDataDir}`,
+      ],
+      env: {
+        ...process.env,
+        NODE_ENV: 'test',
+      },
+    });
+
+    // Find main window
+    for (let i = 0; i < 50; i++) {
+      for (const w of electronApp.windows()) {
+        try {
+          const url = w.url();
+          if (url && url.includes('index.html') && !url.includes('popups/')) {
+            window = w;
+            break;
+          }
+        } catch {
+          // window might be navigating
+        }
+      }
+      if (window) break;
+      await new Promise((r) => setTimeout(r, 400));
+    }
+
+    if (!window) {
+      window = electronApp.windows()[0] || (await electronApp.firstWindow());
+    }
+
+    // Attach sentinels
+    window.on('pageerror', (err) => {
+      console.error('[PAGEERROR]', err.message);
+      uncaughtExceptions.push(err.message);
+    });
+
+    window.on('console', (msg) => {
+      if (msg.type() === 'error') {
+        const text = msg.text();
+        // Ignore benign chrome font/csp warnings
+        if (!text.includes('Failed to load resource') && !text.includes('favicon.ico')) {
+          consoleErrors.push(text);
+        }
+      }
+    });
+
+    await window.waitForLoadState('domcontentloaded');
+    // Bypass Onboarding modal for testing
+    await window.evaluate(async () => {
+      if (window.electronAPI?.config) {
+        await window.electronAPI.config.set({ key: 'onboardingCompleted', value: true });
+        await window.electronAPI.config.set({ key: 'appUsageMode', value: 'online' });
+        await window.electronAPI.config.set({ key: 'llmBackend', value: 'online' });
+      }
+    });
+
+    await window.waitForTimeout(500);
+    await window.reload();
+    await window.waitForLoadState('domcontentloaded');
+    await window.waitForTimeout(1000);
+  });
+
+  test.afterAll(async () => {
+    if (electronApp) {
+      await electronApp.close();
+    }
+  });
+
+  test('RT-06: Meeting Mode List, Start Recording Trigger & Diagnostic Dialog', async () => {
+    // 1. Navigate to Meeting Mode
+    const meetingNav = window.locator('text=/^(Meeting|회의)$/').first();
+    await expect(meetingNav).toBeVisible({ timeout: 5000 });
+    await meetingNav.click();
+    await window.waitForTimeout(600);
+
+    // Verify page header
+    await expect(window.locator('text=/^(Meeting|회의 모드)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 2. Click "새 회의 시작" button
+    const startBtn = window.getByRole('button', { name: /새 회의 시작|새 회의/i }).first();
+    await expect(startBtn).toBeVisible();
+    await startBtn.click();
+    await window.waitForTimeout(1000);
+
+    // If diagnostic dialog opened (e.g. no mic or whisper unavailable in test container)
+    const dialog = window.getByRole('dialog');
+    const isDialogVisible = await dialog.isVisible({ timeout: 2000 }).catch(() => false);
+    if (isDialogVisible) {
+      // Verify diagnostic elements
+      await expect(window.getByText('Meeting Intelligence Diagnostics')).toBeVisible();
+      await expect(window.getByText(/발생 원인/)).toBeVisible();
+      await expect(window.getByText(/해결 조치/)).toBeVisible();
+
+      // Click "닫기" button
+      const closeBtn = window.getByRole('button', { name: '닫기' });
+      await expect(closeBtn).toBeVisible();
+      await closeBtn.click();
+      await window.waitForTimeout(500);
+      await expect(dialog).not.toBeVisible();
+    }
+
+    // Take screenshot
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt06_meeting_list_and_dialog.png'),
+    });
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-07: Meeting Mode Detail Workspace - Inline Title, ViewModes, MarkdownEditor, Action Items & Chat', async () => {
+    // Seed a meeting session directly via python to avoid Node ABI mismatch
+    const sessionId = 'test-session-redteam-' + Date.now();
+    const dbPath = path.join(testUserDataDir, 'users', '_local', 'd3ro.db');
+    const seedPyPath = path.join(testUserDataDir, 'seed.py');
+    const now = Date.now();
+
+    const pyScript = `import sqlite3, sys
+db_path = sys.argv[1]
+session_id = sys.argv[2]
+now = int(sys.argv[3])
+conn = sqlite3.connect(db_path)
+c = conn.cursor()
+c.execute("""
+  INSERT INTO meeting_sessions (id, title, status, started_at, ended_at, duration_ms, raw_transcript, created_at, updated_at)
+  VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
+""", (
+  session_id,
+  'Red Team AI 전략 회의',
+  'completed',
+  now - 1800000,
+  now,
+  1800000,
+  '[00:05] [참석자 A] D3RO Voice 시스템 성능 점검을 시작합니다.\\n[00:15] [참석자 B] 극단적 레드팀 테스트를 수행 중입니다.\\n[01:00] [참석자 A] 품질 검증을 완벽하게 통과했습니다.',
+  now - 1800000,
+  now
+))
+c.execute("""
+  INSERT INTO meeting_memos (id, session_id, content, timestamp_ms, created_at)
+  VALUES (?, ?, ?, ?, ?)
+""", (
+  'memo-' + session_id,
+  session_id,
+  '#결정 음성 인식 모델 레이턴시 최적화 완료',
+  5000,
+  now - 1795000
+))
+c.execute("""
+  INSERT INTO meeting_documents (id, session_id, template_type, title, content, created_at, updated_at)
+  VALUES (?, ?, ?, ?, ?, ?, ?)
+""", (
+  'doc-' + session_id,
+  session_id,
+  'minutes',
+  '전략 회의록',
+  '# 레드팀 전략 회의록\\n\\n## 1. 개요\\n- 시스템 안정성 심층 검증\\n\\n## 2. 액션 아이템\\n- [ ] E2E 헤드풀 테스트 통과하기\\n- [x] SQLite ABI 불일치 수정 완료\\n\\n## 3. 결론\\n전체 파이프라인 완벽 가동',
+  now,
+  now
+))
+conn.commit()
+conn.close()
+`;
+
+    fs.writeFileSync(seedPyPath, pyScript, 'utf-8');
+    const cp = require('child_process');
+    cp.execSync(`python "${seedPyPath}" "${dbPath}" "${sessionId}" "${now}"`);
+    fs.unlinkSync(seedPyPath);
+
+    // Refresh meeting list by navigating to dashboard and back to meeting
+    await window.locator('text=/^(Dashboard|대시보드)$/').first().click();
+    await window.waitForTimeout(400);
+    await window.locator('text=/^(Meeting|회의)$/').first().click();
+    await window.waitForTimeout(800);
+
+    // Click on the seeded session card
+    const sessionCard = window.getByText('Red Team AI 전략 회의');
+    await expect(sessionCard).toBeVisible({ timeout: 5000 });
+    await sessionCard.click();
+    await window.waitForTimeout(800);
+
+    // 1. Verify MeetingDetailTabs is rendered
+    await expect(window.getByRole('tab', { name: '전략 회의록' })).toBeVisible({ timeout: 5000 });
+
+    // 2. Test Inline Title Editing
+    const editTitleBtn = window.locator('button:has(svg.lucide-pencil)');
+    if (await editTitleBtn.isVisible()) {
+      await editTitleBtn.click();
+      await window.waitForTimeout(300);
+      const titleInput = window.locator('input[value*="Red Team AI 전략 회의"]');
+      await expect(titleInput).toBeVisible();
+      await titleInput.fill('Red Team AI 전략 회의 (검증됨)');
+      const saveTitleBtn = window.locator('button:has(svg.lucide-check)');
+      await saveTitleBtn.click();
+      await window.waitForTimeout(500);
+      await expect(window.getByText('Red Team AI 전략 회의 (검증됨)')).toBeVisible();
+    }
+
+    // 3. Test ViewMode switches (SegmentControl)
+    const transcriptOnlyBtn = window.getByText('Transcript ▤');
+    if (await transcriptOnlyBtn.isVisible()) {
+      await transcriptOnlyBtn.click();
+      await window.waitForTimeout(300);
+      await expect(window.getByText(/D3RO Voice 시스템 성능 점검/)).toBeVisible();
+
+      const docOnlyBtn = window.getByText('Minutes ▥');
+      await docOnlyBtn.click();
+      await window.waitForTimeout(300);
+      await expect(window.getByRole('heading', { name: '레드팀 전략 회의록' })).toBeVisible();
+
+      const splitBtn = window.getByText('Split ◫');
+      await splitBtn.click();
+      await window.waitForTimeout(300);
+    }
+
+    // 4. Test MarkdownEditor preview vs edit toggle
+    const editModeBtn = window.locator('button').filter({ hasText: '편집' }).first();
+    if (await editModeBtn.isVisible()) {
+      await editModeBtn.click();
+      await window.waitForTimeout(300);
+      const textarea = window.locator('textarea');
+      await expect(textarea).toBeVisible();
+      await textarea.type('\n\n## 4. 추가 사항\n- 레드팀 사이클 2 통과');
+      await window.waitForTimeout(600); // let autosave debounce fire
+
+      const previewModeBtn = window.locator('button').filter({ hasText: '미리보기' }).first();
+      await previewModeBtn.click();
+      await window.waitForTimeout(300);
+      await expect(window.getByText(/추가 사항/)).toBeVisible();
+    }
+
+    // 5. Test Action Items tab
+    const actionItemsTab = window.getByText(/Action Items/i);
+    if (await actionItemsTab.isVisible()) {
+      await actionItemsTab.click();
+      await window.waitForTimeout(400);
+      await expect(window.getByText(/E2E 헤드풀 테스트/)).toBeVisible();
+
+      // Toggle action item checkbox
+      const checkbox = window.locator('input[type="checkbox"]').first();
+      await checkbox.click();
+      await window.waitForTimeout(300);
+    }
+
+    // 6. Test Scratchpad Notepad tab
+    const notepadTab = window.getByText(/Granola Notepad/i);
+    if (await notepadTab.isVisible()) {
+      await notepadTab.click();
+      await window.waitForTimeout(400);
+      const notepadTextarea = window.locator('textarea').first();
+      if (await notepadTextarea.isVisible()) {
+        await notepadTextarea.fill('핵심 안건: 실시간 STT 엔진 최적화 및 텍스트 렌더링 검증');
+        await window.waitForTimeout(300);
+      }
+    }
+
+    // 7. Test Export Menu
+    const exportBtn = window.getByRole('button', { name: /내보내기/i });
+    if (await exportBtn.isVisible()) {
+      await exportBtn.click();
+      await window.waitForTimeout(300);
+      await expect(window.getByText(/Markdown/i)).toBeVisible();
+      // Press Escape to dismiss menu
+      await window.keyboard.press('Escape');
+      await window.waitForTimeout(300);
+    }
+
+    // 8. Test Meeting Chat Panel
+    const chatInput = window.locator('input[placeholder*="AI에게 질문"]');
+    if (await chatInput.isVisible()) {
+      await chatInput.fill('회의 요약해줘');
+      await window.keyboard.press('Enter');
+      await window.waitForTimeout(600);
+
+      // Verify user message appears
+      await expect(window.getByText('회의 요약해줘')).toBeVisible();
+
+      // Clear chat
+      const clearChatBtn = window.locator('button:has(svg.lucide-trash2)');
+      if (await clearChatBtn.isVisible()) {
+        await clearChatBtn.click();
+        await window.waitForTimeout(300);
+        await expect(window.getByText('회의 요약해줘')).not.toBeVisible();
+      }
+    }
+
+    // 9. Back to meeting list
+    const backBtn = window.locator('button:has(svg.lucide-arrow-left)');
+    await backBtn.click();
+    await window.waitForTimeout(500);
+    await expect(window.getByText('Red Team AI 전략 회의 (검증됨)')).toBeVisible();
+
+    // Take screenshot
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt07_meeting_detail_workspace.png'),
+    });
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-08: Knowledge Base - Semantic Synthesis Query, Chips, Add & Delete Document', async () => {
+    // 1. Navigate to Knowledge Base
+    const ragNav = window.locator('text=/^(Knowledge Base|지식 베이스)$/').first();
+    await expect(ragNav).toBeVisible({ timeout: 5000 });
+    await ragNav.click();
+    await window.waitForTimeout(600);
+
+    // Verify page header
+    await expect(window.locator('text=/^(Knowledge Base|지식 베이스)$/').first()).toBeVisible({ timeout: 5000 });
+
+    // 2. Test query input
+    const queryInput = window.locator('input[placeholder*="질문하세요"]');
+    await expect(queryInput).toBeVisible();
+    await queryInput.fill('D3RO Voice 아키텍처');
+
+    // Click Search button
+    const searchBtn = window.getByRole('button', { name: /Search|검색/i });
+    await expect(searchBtn).toBeVisible();
+    await searchBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify searching spinner or graceful error feedback
+    await window.waitForTimeout(1000);
+
+    // 3. Add a mock document via IPC
+    const tempFilePath = path.join(testUserDataDir, 'red_team_sample.md');
+    fs.writeFileSync(
+      tempFilePath,
+      '# D3RO Voice 시스템 문서\n\nD3RO Voice는 고성능 로컬 퍼스트 음성 비서 아키텍처를 지원하며 빠른 STT 및 LLM 파이프라인을 제공합니다.',
+      'utf-8'
+    );
+
+    const addDocResult = await window.evaluate(async (filePath) => {
+      return await window.electronAPI.rag.addDocument({ filePath });
+    }, tempFilePath);
+
+    expect(addDocResult.success).toBe(true);
+
+    // Reload documents by re-navigating
+    await ragNav.click();
+    await window.waitForTimeout(800);
+
+    // Verify document card appears
+    await expect(window.getByText('red_team_sample.md')).toBeVisible({ timeout: 5000 });
+    await expect(window.getByText('MD', { exact: true })).toBeVisible();
+
+    // 4. Test Reindex button
+    const reindexBtn = window.locator('button:has(svg.lucide-refresh-cw)').first();
+    if (await reindexBtn.isVisible()) {
+      await reindexBtn.click();
+      await window.waitForTimeout(500);
+    }
+
+    // 5. Test Delete document button
+    const deleteDocBtn = window.locator('button:has(svg.lucide-trash-2)').first();
+    await expect(deleteDocBtn).toBeVisible();
+    await deleteDocBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify document is removed
+    await expect(window.getByText('red_team_sample.md')).not.toBeVisible();
+
+    // Clean up temp file
+    if (fs.existsSync(tempFilePath)) {
+      fs.unlinkSync(tempFilePath);
+    }
+
+    // Take screenshot
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt08_knowledge_base.png'),
+    });
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-09: Voice Conversation - Canvas, Text Chat, Mic Toggle & Clear History', async () => {
+    // 1. Navigate to Voice Conversation
+    const voiceNav = window.locator('text=/^(Talk|대화)$/').first();
+    await expect(voiceNav).toBeVisible({ timeout: 5000 });
+    await voiceNav.click();
+    await window.waitForTimeout(600);
+
+    // Verify PageHeader
+    await expect(window.locator('text=/^(Voice Conversation|음성 대화)$/').first()).toBeVisible({ timeout: 5000 });
+    await expect(window.getByText(/대기|IDLE/i).first()).toBeVisible();
+
+    // Verify empty state
+    await expect(window.getByText(/D3RO에게 말을 걸어보세요|Talk to D3RO/i)).toBeVisible();
+
+    // 2. Test Text Fallback Chat Input
+    const chatInput = window.locator('input[placeholder*="메시지 입력"]');
+    await expect(chatInput).toBeVisible();
+    await chatInput.fill('안녕 D3RO, 현재 상태 점검해줘');
+
+    const sendBtn = window.locator('button:has(svg.lucide-send)');
+    await expect(sendBtn).toBeVisible();
+    await sendBtn.click();
+    await window.waitForTimeout(1000);
+
+    // Verify user message appears in bubble
+    await expect(window.getByText('안녕 D3RO, 현재 상태 점검해줘')).toBeVisible({ timeout: 5000 });
+
+    // 3. Test Clear History
+    const clearBtn = window.locator('button:has(svg.lucide-trash-2)');
+    if (await clearBtn.isVisible()) {
+      await clearBtn.click();
+      await window.waitForTimeout(500);
+    }
+
+    // If session is active or thinking, end session so state returns to idle
+    const stopSessionBtn = window.getByRole('button', { name: /종료|End/i });
+    if (await stopSessionBtn.isVisible()) {
+      await stopSessionBtn.click();
+      await window.waitForTimeout(600);
+    }
+
+    await expect(window.getByText(/D3RO에게 말을 걸어보세요|Talk to D3RO/i)).toBeVisible({ timeout: 5000 });
+
+    // Take screenshot
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt09_voice_conversation.png'),
+    });
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+});
diff --git a/apps/desktop/tests/e2e/red_team_cycle3.spec.ts b/apps/desktop/tests/e2e/red_team_cycle3.spec.ts
new file mode 100644
index 0000000..54af8c6
--- /dev/null
+++ b/apps/desktop/tests/e2e/red_team_cycle3.spec.ts
@@ -0,0 +1,337 @@
+import { test, expect, _electron as electron, ElectronApplication, Page } from '@playwright/test';
+import path from 'path';
+import fs from 'fs';
+
+const SCREENSHOT_DIR = path.resolve('C:/Users/encep/.gemini/antigravity/brain/bbff18a3-721d-4c43-989f-1d6964e15be7/screenshots');
+
+test.describe.serial('Extreme Red Team - Cycle 3: Modals, Deep Configuration & System Shell', () => {
+  let app: ElectronApplication;
+  let window: Page;
+  let testUserDataDir: string;
+  const uncaughtExceptions: string[] = [];
+
+  test.beforeAll(async () => {
+    if (!fs.existsSync(SCREENSHOT_DIR)) {
+      fs.mkdirSync(SCREENSHOT_DIR, { recursive: true });
+    }
+
+    testUserDataDir = path.join(
+      'C:/Users/encep/AppData/Local/Temp',
+      'playwright-redteam-cycle3-' + Date.now()
+    );
+
+    app = await electron.launch({
+      args: [
+        'out/main/index.js',
+        '--disable-gpu',
+        '--no-sandbox',
+        `--user-data-dir=${testUserDataDir}`,
+      ],
+      env: {
+        ...process.env,
+        NODE_ENV: 'test',
+      },
+    });
+
+    // Find main window
+    for (let i = 0; i < 50; i++) {
+      for (const w of app.windows()) {
+        try {
+          const url = w.url();
+          if (url && url.includes('index.html') && !url.includes('popups/')) {
+            window = w;
+            break;
+          }
+        } catch {
+          // window navigating
+        }
+      }
+      if (window) break;
+      await new Promise((r) => setTimeout(r, 400));
+    }
+
+    if (!window) {
+      window = app.windows()[0] || (await app.firstWindow());
+    }
+
+    window.on('pageerror', (err) => {
+      console.error('[PAGEERROR in Electron Window]:', err.message);
+      uncaughtExceptions.push(err.message);
+    });
+
+    await window.waitForLoadState('domcontentloaded');
+
+    // Bypass Onboarding modal for testing
+    await window.evaluate(async () => {
+      if (window.electronAPI?.config) {
+        await window.electronAPI.config.set({ key: 'onboardingCompleted', value: true });
+        await window.electronAPI.config.set({ key: 'appUsageMode', value: 'online' });
+        await window.electronAPI.config.set({ key: 'llmBackend', value: 'online' });
+      }
+    });
+
+    await window.waitForTimeout(500);
+    await window.reload();
+    await window.waitForLoadState('domcontentloaded');
+    await window.waitForTimeout(1000);
+  });
+
+  test.afterAll(async () => {
+    if (app) {
+      await app.close();
+    }
+  });
+
+  test('RT-10: SettingsModal - Deep Tab Traversal, Live Theme Switching, Language Switch & Audio Test', async () => {
+    // 1. Open SettingsModal from sidebar
+    const settingsTrigger = window.getByText('설정', { exact: true });
+    await expect(settingsTrigger).toBeVisible({ timeout: 5000 });
+    await settingsTrigger.click();
+    await window.waitForTimeout(600);
+
+    // Verify modal dialog opened
+    await expect(window.getByText(/설정|SETTINGS/i).first()).toBeVisible({ timeout: 5000 });
+
+    // 2. Tab 0: General - Voice Mode Cards & Theme / Language
+    await expect(window.getByText(/받아쓰기|Dictation/i).first()).toBeVisible();
+    await expect(window.getByText(/원터치|Hands-Free/i).first()).toBeVisible();
+    await expect(window.getByText(/자막|Caption/i).first()).toBeVisible();
+
+    // Test Theme Selector
+    const themeSelect = window.locator('div[role="combobox"]').first();
+    if (await themeSelect.isVisible()) {
+      await themeSelect.click();
+      await window.waitForTimeout(300);
+      // Select Light theme
+      const lightOption = window.getByRole('option', { name: /라이트|Light/i });
+      if (await lightOption.isVisible()) {
+        await lightOption.click();
+        await window.waitForTimeout(400);
+      }
+      // Select Dark theme back
+      await themeSelect.click();
+      await window.waitForTimeout(300);
+      const darkOption = window.getByRole('option', { name: /다크|Dark/i });
+      if (await darkOption.isVisible()) {
+        await darkOption.click();
+        await window.waitForTimeout(400);
+      }
+    }
+
+    // 3. Tab 1: Audio Tab
+    const audioTab = window.getByRole('tab', { name: /오디오|Audio/i });
+    await expect(audioTab).toBeVisible();
+    await audioTab.click();
+    await window.waitForTimeout(500);
+
+    // Verify Audio Settings: Input device selector & Mic Test
+    await expect(window.getByText(/입력 장치|마이크|Microphone/i).first()).toBeVisible();
+    const micTestBtn = window.getByRole('button', { name: /테스트|Test/i }).first();
+    if (await micTestBtn.isVisible()) {
+      await micTestBtn.click();
+      await window.waitForTimeout(400);
+      // Click again to stop test
+      await micTestBtn.click();
+      await window.waitForTimeout(300);
+    }
+
+    // 4. Tab 2: STT Tab
+    const sttTab = window.getByRole('tab', { name: 'STT' });
+    await expect(sttTab).toBeVisible();
+    await sttTab.click();
+    await window.waitForTimeout(500);
+
+    // Verify STT Provider / Model configurations
+    await expect(window.getByText(/STT 엔진|faster-whisper|모델|Provider/i).first()).toBeVisible();
+
+    // 5. Tab 3: LLM Tab
+    const llmTab = window.getByRole('tab', { name: 'LLM' });
+    await expect(llmTab).toBeVisible();
+    await llmTab.click();
+    await window.waitForTimeout(500);
+
+    // Verify Ollama Server URL input
+    await expect(window.getByText(/Ollama|Server|URL/i).first()).toBeVisible();
+    const refreshLlmBtn = window.locator('button:has(svg.lucide-refresh-cw)').first();
+    if (await refreshLlmBtn.isVisible()) {
+      await refreshLlmBtn.click();
+      await window.waitForTimeout(400);
+    }
+
+    // 6. Tab 4: License Tab
+    const licenseTab = window.getByRole('tab', { name: /라이선스|License/i });
+    await expect(licenseTab).toBeVisible();
+    await licenseTab.click();
+    await window.waitForTimeout(500);
+
+    // Verify Current Tier Display
+    await expect(window.getByText(/현재 라이선스|현재 플랜|FREE|PRO/i).first()).toBeVisible();
+
+    // 7. Tab 5: Cloud Sync Tab
+    const cloudTab = window.getByRole('tab', { name: /클라우드|Cloud/i });
+    if (await cloudTab.isVisible()) {
+      await cloudTab.click();
+      await window.waitForTimeout(500);
+      await expect(window.getByText(/Cloud|동기화|Sync/i).first()).toBeVisible();
+    }
+
+    // 8. Tab 6: About Tab
+    const aboutTab = window.getByRole('tab', { name: /정보|About/i });
+    if (await aboutTab.isVisible()) {
+      await aboutTab.click();
+      await window.waitForTimeout(500);
+      await expect(window.getByText(/D3RO Voice|버전|Version/i).first()).toBeVisible();
+    }
+
+    // Screenshot SettingsModal
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt10_settings_modal_all_tabs.png'),
+    });
+
+    // Close SettingsModal
+    const closeBtn = window.locator('div[role="dialog"] button:has(svg.lucide-x)').first();
+    await expect(closeBtn).toBeVisible();
+    await closeBtn.click();
+    await window.waitForTimeout(500);
+
+    // Verify modal is closed
+    await expect(window.locator('div[role="dialog"]')).not.toBeVisible();
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-11: HotkeyRecordModal - Interactive Hotkey Recording & Conflict Protection', async () => {
+    // 1. Re-open SettingsModal to General Tab
+    const settingsTrigger = window.getByText('설정', { exact: true });
+    await settingsTrigger.click();
+    await window.waitForTimeout(600);
+
+    // Click General tab
+    const generalTab = window.getByRole('tab', { name: /일반|General/i });
+    await generalTab.click();
+    await window.waitForTimeout(400);
+
+    // 2. Click pencil icon on Dictation shortcut to open HotkeyRecordModal
+    const editHotkeyBtn = window.locator('button:has(svg.lucide-pencil)').first();
+    await expect(editHotkeyBtn).toBeVisible();
+    await editHotkeyBtn.click();
+    await window.waitForTimeout(500);
+
+    // Verify HotkeyRecordModal is open
+    await expect(window.getByText(/단축키 설정|단축키 녹화|키 조합/i).first()).toBeVisible({ timeout: 5000 });
+
+    // 3. Test pressing a key (F9)
+    await window.keyboard.press('F9');
+    await window.waitForTimeout(400);
+
+    // Verify chip shows F9
+    await expect(window.getByText('F9', { exact: true })).toBeVisible();
+
+    // Take screenshot while modal is open with captured key
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt11_hotkey_modal_verified.png'),
+    });
+
+    // 4. Click Cancel button to close HotkeyRecordModal without corrupting bindings
+    const cancelBtn = window.getByRole('button', { name: /취소|Cancel/i });
+    await expect(cancelBtn).toBeVisible();
+    await cancelBtn.click();
+    await window.waitForTimeout(500);
+
+    // Close SettingsModal
+    const closeSettingsBtn = window.locator('div[role="dialog"] button:has(svg.lucide-x)').first();
+    if (await closeSettingsBtn.isVisible()) {
+      await closeSettingsBtn.click();
+      await window.waitForTimeout(500);
+    }
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-12: SupportModal - AI Diagnostics, FAQ Accordion, Refund Query & Telemetry', async () => {
+    // 1. Open SupportModal from sidebar
+    const supportTrigger = window.locator('text=Customer Support').first();
+    await expect(supportTrigger).toBeVisible({ timeout: 5000 });
+    await supportTrigger.click();
+    await window.waitForTimeout(600);
+
+    // Verify SupportModal opens
+    await expect(window.getByText(/Customer Assistance|고객지원/i).first()).toBeVisible({ timeout: 5000 });
+
+    // 2. Tab 0: AI Assistant Chat & Quick Prompt Chips
+    await expect(window.getByText(/AI 어시스턴트|AI Assistant/i).first()).toBeVisible();
+
+    // Click quick prompt chip: "🎤 마이크 인식 오류"
+    const micPromptChip = window.getByRole('button', { name: /마이크/i }).first();
+    if (await micPromptChip.isVisible()) {
+      await micPromptChip.click();
+      await window.waitForTimeout(800);
+
+      // Verify AI answer appears
+      await expect(window.getByText(/마이크 입력 진단 결과|개인정보 권한/i)).toBeVisible({ timeout: 5000 });
+    }
+
+    // 3. Tab 1: FAQ Accordion
+    const faqTab = window.getByRole('tab', { name: /FAQ|자주 묻는 질문/i });
+    await expect(faqTab).toBeVisible();
+    await faqTab.click();
+    await window.waitForTimeout(500);
+
+    // Verify FAQ questions render
+    await expect(window.getByText(/마이크 음성 인식이 작동하지 않거나/i)).toBeVisible();
+    await expect(window.getByText(/NVIDIA CUDA GPU 가속/i)).toBeVisible();
+
+    // 4. Tab 3 (Tab index 3 in DOM): 7일 자동 환불 확인
+    const refundTab = window.getByRole('tab', { name: /환불|Refund/i });
+    if (await refundTab.isVisible()) {
+      await refundTab.click();
+      await window.waitForTimeout(500);
+
+      // Verify refund check button
+      const checkRefundBtn = window.getByRole('button', { name: /환불 자격 조회/i });
+      if (await checkRefundBtn.isVisible()) {
+        await checkRefundBtn.click();
+        await window.waitForTimeout(1000);
+        // Verify eligibility result
+        await expect(window.getByText(/전액 환불 가능|조회 완료|환불 자격/i).first()).toBeVisible();
+      }
+    }
+
+    // Take screenshot
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt12_support_diagnostics_modal.png'),
+    });
+
+    // Close SupportModal
+    await window.keyboard.press('Escape');
+    await window.waitForTimeout(500);
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-13: LicenseModal & Custom Events Fail-Closed Monetization Guardrails', async () => {
+    // 1. Dispatch custom event to open LicenseModal
+    await window.evaluate(() => {
+      window.dispatchEvent(new CustomEvent('d3ro:open-license-modal'));
+    });
+    await window.waitForTimeout(600);
+
+    // Verify LicenseModal opens
+    await expect(window.getByText(/라이선스|License/i).first()).toBeVisible({ timeout: 5000 });
+    await expect(window.getByText(/현재 등급|FREE/i).first()).toBeVisible();
+
+    // Verify Tier Comparison Table exists
+    await expect(window.getByText(/등급 비교|Tier Comparison/i)).toBeVisible();
+
+    // Take screenshot
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt13_license_monetization_modal.png'),
+    });
+
+    // Close LicenseModal via Escape
+    await window.keyboard.press('Escape');
+    await window.waitForTimeout(500);
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+});
diff --git a/apps/desktop/tests/e2e/red_team_cycle5.spec.ts b/apps/desktop/tests/e2e/red_team_cycle5.spec.ts
new file mode 100644
index 0000000..cf87520
--- /dev/null
+++ b/apps/desktop/tests/e2e/red_team_cycle5.spec.ts
@@ -0,0 +1,265 @@
+import { test, expect, _electron as electron, ElectronApplication, Page } from '@playwright/test';
+import path from 'path';
+import fs from 'fs';
+
+const SCREENSHOT_DIR = path.resolve('C:/Users/encep/.gemini/antigravity/brain/bbff18a3-721d-4c43-989f-1d6964e15be7/screenshots');
+
+test.describe.serial('Extreme Red Team - Cycle 5: Rapid Route Thrashing, Onboarding Wizard & Input Fuzzing', () => {
+  let app: ElectronApplication;
+  let window: Page;
+  let testUserDataDir: string;
+  let uncaughtExceptions: string[] = [];
+
+  test.beforeAll(async () => {
+    if (!fs.existsSync(SCREENSHOT_DIR)) {
+      fs.mkdirSync(SCREENSHOT_DIR, { recursive: true });
+    }
+
+    testUserDataDir = path.join(
+      'C:/Users/encep/AppData/Local/Temp',
+      'playwright-redteam-cycle5-' + Date.now()
+    );
+
+    app = await electron.launch({
+      args: [
+        'out/main/index.js',
+        '--disable-gpu',
+        '--no-sandbox',
+        `--user-data-dir=${testUserDataDir}`,
+      ],
+      env: {
+        ...process.env,
+        NODE_ENV: 'test',
+      },
+    });
+
+    // Find main window
+    for (let i = 0; i < 50; i++) {
+      for (const w of app.windows()) {
+        try {
+          const url = w.url();
+          if (url && url.includes('index.html') && !url.includes('popups/')) {
+            window = w;
+            break;
+          }
+        } catch {
+          // window navigating
+        }
+      }
+      if (window) break;
+      await new Promise((r) => setTimeout(r, 400));
+    }
+
+    if (!window) {
+      window = app.windows()[0] || (await app.firstWindow());
+    }
+
+    window.on('pageerror', (err) => {
+      console.error('[PAGEERROR in Electron Window]:', err.message);
+      uncaughtExceptions.push(err.message);
+    });
+
+    await window.waitForLoadState('domcontentloaded');
+
+    // Bypass Onboarding modal initially
+    await window.evaluate(async () => {
+      if (window.electronAPI?.config) {
+        await window.electronAPI.config.set({ key: 'onboardingCompleted', value: true });
+        await window.electronAPI.config.set({ key: 'appUsageMode', value: 'online' });
+        await window.electronAPI.config.set({ key: 'llmBackend', value: 'online' });
+      }
+    });
+
+    await window.waitForTimeout(500);
+    await window.reload();
+    await window.waitForLoadState('domcontentloaded');
+    await window.waitForTimeout(1000);
+  });
+
+  test.afterAll(async () => {
+    if (app) {
+      await app.close();
+    }
+  });
+
+  test.beforeEach(() => {
+    uncaughtExceptions = [];
+  });
+
+  test('RT-16: Rapid Route Thrashing & Concurrency Stress Test', async () => {
+    // 7 navigation routes in AppLayout
+    const routes = [
+      '대시보드',
+      '기록',
+      '단어장',
+      '명령어',
+      '음성 대화',
+      '지식 베이스',
+      '회의록'
+    ];
+
+    // Rapid thrashing loop - 10 full passes at high speed
+    for (let loop = 0; loop < 5; loop++) {
+      for (const routeName of routes) {
+        const navButton = window.getByText(routeName, { exact: true }).first();
+        if (await navButton.isVisible()) {
+          await navButton.click();
+          // Hyper rapid 40ms interval
+          await window.waitForTimeout(40);
+        }
+      }
+    }
+
+    // Settle back to dashboard
+    const dashboardNav = window.getByText('대시보드', { exact: true }).first();
+    await dashboardNav.click();
+    await window.waitForTimeout(500);
+
+    // Verify system survived rapid thrashing and dashboard is completely healthy
+    await expect(window.getByText(/총 발화|오늘 사용량|음성 인식|대시보드/i).first()).toBeVisible({ timeout: 5000 });
+
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt16_route_thrashing_settled.png'),
+    });
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-17: Onboarding Modal & First-Run Wizard Headful Execution', async () => {
+    // 1. Reset onboarding to false and reload to trigger OnboardingModal
+    await window.evaluate(async () => {
+      if (window.electronAPI?.config) {
+        await window.electronAPI.config.set({ key: 'onboardingCompleted', value: false });
+      }
+    });
+
+    await window.reload();
+    await window.waitForLoadState('domcontentloaded');
+    await window.waitForTimeout(1000);
+
+    // 2. Verify OnboardingModal is visible
+    await expect(window.getByText(/D3RO Voice 시작 가이드/i)).toBeVisible({ timeout: 10000 });
+    await expect(window.getByText(/로컬 AI 모드/i).first()).toBeVisible();
+    await expect(window.getByText(/온라인 클라우드 모드/i).first()).toBeVisible();
+
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt17_01_onboarding_select_mode.png'),
+    });
+
+    // 3. Test Local Mode Selection
+    await window.getByRole('button', { name: /로컬 AI 모드로 시작/i }).click();
+    await window.waitForTimeout(600);
+
+    // Verify transitions to local_ollama_setup phase
+    await expect(window.getByText(/Ollama 로컬 엔진/i).first()).toBeVisible({ timeout: 5000 });
+
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt17_02_onboarding_local_setup.png'),
+    });
+
+    // Test back button
+    const backBtn = window.getByText('뒤로 가기', { exact: true });
+    await expect(backBtn).toBeVisible();
+    await backBtn.click();
+    await window.waitForTimeout(500);
+
+    // Verify back to select_mode
+    await expect(window.getByText(/로컬 AI 모드/i).first()).toBeVisible();
+
+    // 4. Test Online Cloud Mode Selection
+    await window.getByRole('button', { name: /온라인 계정 로그인/i }).click();
+    await window.waitForTimeout(600);
+
+    // Verify transitions to online_auth phase
+    await expect(window.getByText(/온라인 서비스를 이용하기 위해/i).first()).toBeVisible({ timeout: 5000 });
+
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt17_03_onboarding_online_auth.png'),
+    });
+
+    // Go back again
+    await window.getByText('뒤로 가기', { exact: true }).click();
+    await window.waitForTimeout(500);
+
+    // 5. Restore onboardingCompleted
+    await window.evaluate(async () => {
+      await window.electronAPI.config.set({ key: 'onboardingCompleted', value: true });
+    });
+
+    await window.reload();
+    await window.waitForLoadState('domcontentloaded');
+    await window.waitForTimeout(1000);
+    expect(uncaughtExceptions).toEqual([]);
+  });
+
+  test('RT-18: Adversarial Input Fuzzing, Boundary Conditions & SQL/XSS Injection Defense', async () => {
+    // 1. Dictionary Fuzzing
+    const dictNav = window.locator('text=/^(Dictionary|사전|단어장)$/').first();
+    await dictNav.click();
+    await window.waitForTimeout(600);
+
+    const sqlXssPayload = '\' OR \'1\'=\'1\'; <script>alert("XSS")</script>';
+    const safeReplacement = 'FuzzReplacement';
+
+    // Click 추가 button
+    const addWordBtn = window.locator('button:has-text("추가"), button:has-text("Add")').first();
+    await addWordBtn.click();
+    await window.waitForTimeout(400);
+
+    // Fill inputs in dialog
+    const wordInput = window.locator('div[role="dialog"] input').first();
+    const pronInput = window.locator('div[role="dialog"] input').nth(1);
+    await wordInput.fill(sqlXssPayload);
+    await pronInput.fill(safeReplacement);
+
+    // Save
+    const saveBtn = window.locator('div[role="dialog"] button:has-text("저장"), div[role="dialog"] button:has-text("Save")').first();
+    await saveBtn.click();
+    await window.waitForTimeout(600);
+
+    // Verify word was stored safely without executing XSS or corrupting SQLite
+    await expect(window.getByText(sqlXssPayload).first()).toBeVisible({ timeout: 5000 });
+
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt18_01_dictionary_fuzzing_saved.png'),
+    });
+
+    // Clean up: delete the fuzzed word
+    const deleteBtn = window.locator('button[aria-label*="삭제"], button:has(svg.lucide-trash-2)').first();
+    if (await deleteBtn.isVisible()) {
+      await deleteBtn.click();
+      await window.waitForTimeout(400);
+      // Confirm dialog if any
+      const confirmBtn = window.locator('div[role="dialog"] button:has-text("삭제"), div[role="dialog"] button:has-text("Delete")').first();
+      if (await confirmBtn.isVisible()) {
+        await confirmBtn.click();
+        await window.waitForTimeout(400);
+      }
+    }
+
+    // 2. Knowledge Base Query Fuzzing (Regex Break Characters)
+    const kbNav = window.locator('text=/^(Knowledge|지식 베이스)$/').first();
+    await kbNav.click();
+    await window.waitForTimeout(600);
+
+    const regexBreakQuery = '[([{\\\\^$|?*+';
+    const kbSearchInput = window.locator('input[placeholder*="질문"], input[placeholder*="검색"]').first();
+    if (await kbSearchInput.isVisible()) {
+      await kbSearchInput.fill(regexBreakQuery);
+      await window.keyboard.press('Enter');
+      await window.waitForTimeout(800);
+    }
+
+    await window.screenshot({
+      path: path.join(SCREENSHOT_DIR, 'rt18_02_knowledge_fuzzing_query.png'),
+    });
+
+    // Settle back to dashboard
+    const dashboardNav = window.locator('text=/^(Dashboard|대시보드)$/').first();
+    await dashboardNav.click();
+    await window.waitForTimeout(500);
+
+    expect(uncaughtExceptions).toEqual([]);
+  });
+});
+
diff --git a/apps/desktop/tests/main/safe-filename.test.ts b/apps/desktop/tests/main/safe-filename.test.ts
new file mode 100644
index 0000000..9787d69
--- /dev/null
+++ b/apps/desktop/tests/main/safe-filename.test.ts
@@ -0,0 +1,32 @@
+// tests/main/safe-filename.test.ts
+// 사용자 제목 → 파일명 조각 정규화 테스트: 금지 문자, 제어 문자, 길이 제한, 폴백.
+
+import { describe, it, expect } from 'vitest'
+import { toSafeFilenameSegment } from '../../src/main/utils/safe-filename'
+
+describe('toSafeFilenameSegment', () => {
+  it('일반 제목은 그대로 유지한다', () => {
+    expect(toSafeFilenameSegment('Weekly Sync 2026', 'meeting')).toBe('Weekly Sync 2026')
+  })
+
+  it('Windows 금지 문자와 경로 구분자를 치환한다', () => {
+    expect(toSafeFilenameSegment('a/b\\c:d*e?f"g<h>i|j%k', 'meeting')).toBe(
+      'a-b-c-d-e-f-g-h-i-j-k',
+    )
+  })
+
+  it('제어 문자를 치환한다', () => {
+    expect(toSafeFilenameSegment('line\u0000break\u001f', 'meeting')).toBe('line-break-')
+  })
+
+  it('null/빈 문자열/공백은 폴백을 반환한다', () => {
+    expect(toSafeFilenameSegment(null, 'meeting')).toBe('meeting')
+    expect(toSafeFilenameSegment(undefined, 'meeting')).toBe('meeting')
+    expect(toSafeFilenameSegment('   ', 'meeting')).toBe('meeting')
+  })
+
+  it('최대 길이로 자르고 남은 값이 없으면 잘린 폴백을 반환한다', () => {
+    expect(toSafeFilenameSegment('abcdefghij', 'meeting', 4)).toBe('abcd')
+    expect(toSafeFilenameSegment('   ', 'meeting', 4)).toBe('meet')
+  })
+})
\ No newline at end of file
diff --git a/apps/desktop/tsconfig.check-node.json b/apps/desktop/tsconfig.check-node.json
new file mode 100644
index 0000000..f7eacdc
--- /dev/null
+++ b/apps/desktop/tsconfig.check-node.json
@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.node.json",
+  "compilerOptions": {
+    "composite": false,
+    "incremental": false,
+    "noEmit": true,
+    "declaration": false,
+    "declarationMap": false,
+    "rootDir": "../..",
+    "moduleResolution": "bundler"
+  }
+}
diff --git a/apps/desktop/tsconfig.check.json b/apps/desktop/tsconfig.check.json
new file mode 100644
index 0000000..b925396
--- /dev/null
+++ b/apps/desktop/tsconfig.check.json
@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.web.json",
+  "compilerOptions": {
+    "composite": false,
+    "incremental": false,
+    "noEmit": true,
+    "declaration": false,
+    "declarationMap": false,
+    "rootDir": "../.."
+  },
+  "include": ["src/renderer/**/*", "src/preload/**/*"]
+}
diff --git a/apps/desktop/tsconfig.node.json b/apps/desktop/tsconfig.node.json
index 592d492..802bcc2 100644
--- a/apps/desktop/tsconfig.node.json
+++ b/apps/desktop/tsconfig.node.json
@@ -18,7 +18,8 @@
     "noUnusedParameters": true,
     "resolveJsonModule": true,
     "esModuleInterop": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "moduleResolution": "bundler"
   },
   "include": [
     "src/main/**/*",