Phase 5 구현: SQLite DB + History/Dictionary 서비스 + UI

- DB: better-sqlite3 + drizzle-orm (history/dictionary/stats, WAL 모드)
- HistoryService: CRUD + 검색 + 통계 + 30일 보존 정책, 세션 완료 시 자동 저장
- DictionaryService: CRUD + 검색 + 사용 횟수 추적 + STT 프롬프트 힌트
- HistoryPage: 목록 + 검색 + 삭제 + 복사 + 페이지네이션
- DictionaryPage: 목록 + 검색 + 추가 다이얼로그 + 삭제
- DashboardPage: 실데이터 통계 (총/오늘 세션, 시간, 단어수, 연속일수)
- IPC: history/dictionary/stats 핸들러 + preload API
- Bootstrap: DB 초기화 (critical) + 이력 자동 저장 연동

CLAUDE.md

@@ -77,11 +77,21 @@ npm run typecheck    # tsc --noEmit
 6. **녹음 UI**: 9개 웨이브 바, cos 분포 가중치, 100ms 애니메이션
 
 ## 현재 상태
-Phase: 4 완료
+Phase: 5 완료
-마지막 완료: Phase 4 — Ollama LLM 연동 (텍스트 다듬기, 번역, 스트리밍)
+마지막 완료: Phase 5 — SQLite DB + HistoryService + DictionaryService + UI 완성
-다음 작업: Phase 3.5 — 커서 위치 히스토리 팝업 또는 Phase 5 — TTS + DB
+다음 작업: Phase 3.5 — 커서 위치 히스토리 팝업 또는 Phase 6 — 커스텀 명령어
 차단 이슈: SoX 미설치, @nut-tree-fork/nut-js 포크 사용
 
+### Phase 5 구현 내용
+- DB: better-sqlite3 + drizzle-orm (history/dictionary/stats 테이블, WAL 모드)
+- HistoryService: CRUD + 검색 + 통계 + 보존 정책(30일), 세션 완료 시 자동 이력 저장
+- DictionaryService: CRUD + 검색 + 사용 횟수 추적 + STT 프롬프트 힌트
+- History UI: 목록 + 검색 + 삭제 + 복사 + 페이지네이션
+- Dictionary UI: 목록 + 검색 + 추가 다이얼로그 + 삭제
+- Dashboard: 실데이터 통계 (총/오늘 세션수, 시간, 단어수, 연속일수)
+- IPC: history, dictionary, stats 핸들러 + preload API
+- Bootstrap: DB 초기화 단계 추가 (critical)
+
 ### Phase 4 구현 내용
 - LocalLLMService: Ollama REST API 연동, 스트리밍 NDJSON 파싱, 가용성 폴링(5초)
 - 시스템 프롬프트: refine/translate/summarize/grammar/expand/custom 6개 액션

package.json

@@ -17,6 +17,7 @@
   "license": "MIT",
   "devDependencies": {
     "@electron-toolkit/tsconfig": "^1.0.1",
+    "@types/better-sqlite3": "^7.6.13",
     "@types/node": "^22.13.0",
     "@types/react": "^19.0.0",
     "@types/react-dom": "^19.0.0",
@@ -39,9 +40,13 @@
     "@emotion/styled": "^11.14.0",
     "@mui/icons-material": "^7.0.0",
     "@mui/material": "^7.0.0",
+    "@nut-tree-fork/nut-js": "^4.2.6",
     "@rollup/rollup-win32-x64-msvc": "^4.60.1",
+    "better-sqlite3": "^12.8.0",
+    "drizzle-orm": "^0.45.2",
     "electron-log": "^5.2.0",
     "electron-store": "^10.0.0",
+    "nanoid": "^5.1.7",
     "node-record-lpcm16": "^1.0.1",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",

src/main/bootstrap.ts

@@ -6,6 +6,8 @@ import { initConfigService } from './services/ConfigService'
 import { getHotkeyService } from './services/HotkeyService'
 import { getVoiceModeService } from './services/VoiceModeService'
 import { getLocalLLMService } from './services/LocalLLMService'
+import { getHistoryService } from './services/HistoryService'
+import { initDatabase } from './db'
 import {
   createMainWindow,
   preloadPopupWindows,
@@ -30,6 +32,7 @@ export async function bootstrap(): Promise<void> {
   const steps: BootstrapStep[] = [
     { name: 'logger', critical: false, fn: initLogger },
     { name: 'config', critical: false, fn: initConfig },
+    { name: 'database', critical: true, fn: initDB },
     { name: 'create-windows', critical: true, fn: createWindows },
     { name: 'tray', critical: false, fn: initTray },
     { name: 'ipc-handlers', critical: true, fn: initIpcHandlers },
@@ -65,6 +68,10 @@ async function initConfig(): Promise<void> {
   initConfigService()
 }
 
+async function initDB(): Promise<void> {
+  initDatabase()
+}
+
 async function createWindows(): Promise<void> {
   createMainWindow()
 }
@@ -106,11 +113,26 @@ async function initVoiceMode(): Promise<void> {
     }
   })
 
-  voiceMode.on('session-completed', ({ finalText }) => {
+  voiceMode.on('session-completed', ({ session, finalText }) => {
     hideRecordingTip()
     if (finalText.length > 0) {
       showResultPopup(finalText)
     }
+
+    // 이력 저장
+    try {
+      const wordCount = finalText.split(/\s+/).filter((w) => w.length > 0).length
+      getHistoryService().create({
+        originalText: session.transcription || finalText,
+        polishedText: session.processedText,
+        mode: session.mode === 'hands-free' ? 'dictation' : session.mode,
+        status: 'completed',
+        duration: (Date.now() - session.startedAt) / 1000,
+        wordCount
+      })
+    } catch (error) {
+      logger.warn(`Failed to save history: ${error instanceof Error ? error.message : String(error)}`)
+    }
   })
 
   voiceMode.on('session-cancelled', () => {

src/main/db/index.ts

@@ -0,0 +1,107 @@
+// src/main/db/index.ts
+// 설계서 03의 DB 초기화 코드
+
+import Database from 'better-sqlite3'
+import { drizzle, type BetterSQLite3Database } from 'drizzle-orm/better-sqlite3'
+import { app } from 'electron'
+import path from 'path'
+import * as schema from './schema'
+import { getLogger } from '../services/LoggerService'
+
+const logger = getLogger('database')
+
+let db: BetterSQLite3Database<typeof schema> | null = null
+let sqlite: Database.Database | null = null
+
+export function initDatabase(): BetterSQLite3Database<typeof schema> {
+  const dbPath = path.join(app.getPath('userData'), 'd3ro-voice.db')
+  logger.info(`Initializing database at: ${dbPath}`)
+
+  sqlite = new Database(dbPath)
+
+  sqlite.pragma('journal_mode = WAL')
+  sqlite.pragma('foreign_keys = ON')
+  sqlite.pragma('busy_timeout = 5000')
+
+  // 테이블 생성 (마이그레이션 대신 직접 생성)
+  sqlite.exec(`
+    CREATE TABLE IF NOT EXISTS history (
+      id                      TEXT PRIMARY KEY,
+      original_text           TEXT NOT NULL,
+      polished_text           TEXT,
+      focused_app             TEXT,
+      focused_app_name        TEXT,
+      focused_app_window_title TEXT,
+      mode                    TEXT NOT NULL DEFAULT 'dictation',
+      status                  TEXT NOT NULL DEFAULT 'completed',
+      error_code              TEXT,
+      audio_local_path        TEXT,
+      duration                REAL NOT NULL,
+      detected_language       TEXT,
+      mic_device              TEXT,
+      word_count              INTEGER NOT NULL DEFAULT 0,
+      stt_model               TEXT,
+      llm_model               TEXT,
+      stt_latency_ms          INTEGER,
+      llm_latency_ms          INTEGER,
+      created_at              INTEGER NOT NULL,
+      updated_at              INTEGER NOT NULL,
+      app_version             TEXT NOT NULL DEFAULT '1.0.0'
+    );
+
+    CREATE INDEX IF NOT EXISTS idx_history_created_at ON history(created_at DESC);
+    CREATE INDEX IF NOT EXISTS idx_history_status ON history(status);
+    CREATE INDEX IF NOT EXISTS idx_history_detected_language ON history(detected_language);
+    CREATE INDEX IF NOT EXISTS idx_history_focused_app_name ON history(focused_app_name);
+    CREATE INDEX IF NOT EXISTS idx_history_mode ON history(mode);
+
+    CREATE TABLE IF NOT EXISTS dictionary (
+      id            TEXT PRIMARY KEY,
+      word          TEXT NOT NULL,
+      pronunciation TEXT,
+      category      TEXT NOT NULL DEFAULT 'user',
+      usage_count   INTEGER NOT NULL DEFAULT 0,
+      last_used_at  INTEGER,
+      created_at    INTEGER NOT NULL,
+      updated_at    INTEGER NOT NULL
+    );
+
+    CREATE UNIQUE INDEX IF NOT EXISTS idx_dictionary_word_category ON dictionary(word, category);
+    CREATE INDEX IF NOT EXISTS idx_dictionary_created_at ON dictionary(created_at);
+    CREATE INDEX IF NOT EXISTS idx_dictionary_usage_count ON dictionary(usage_count DESC);
+
+    CREATE TABLE IF NOT EXISTS stats (
+      id              INTEGER PRIMARY KEY CHECK (id = 1),
+      total_duration  REAL NOT NULL DEFAULT 0,
+      total_words     INTEGER NOT NULL DEFAULT 0,
+      session_count   INTEGER NOT NULL DEFAULT 0,
+      streak_days     INTEGER NOT NULL DEFAULT 0,
+      last_session_at INTEGER,
+      last_updated    INTEGER NOT NULL
+    );
+
+    INSERT OR IGNORE INTO stats (id, total_duration, total_words, session_count, streak_days, last_updated)
+    VALUES (1, 0, 0, 0, 0, ${Date.now()});
+  `)
+
+  db = drizzle(sqlite, { schema })
+
+  logger.info('Database initialized')
+  return db
+}
+
+export function getDatabase(): BetterSQLite3Database<typeof schema> {
+  if (!db) {
+    throw new Error('Database not initialized. Call initDatabase() first.')
+  }
+  return db
+}
+
+export function closeDatabase(): void {
+  if (sqlite) {
+    sqlite.close()
+    sqlite = null
+    db = null
+    logger.info('Database closed')
+  }
+}

src/main/db/schema.ts

@@ -0,0 +1,83 @@
+// src/main/db/schema.ts
+// 설계서 03의 drizzle-orm 스키마 정의
+
+import { sqliteTable, text, integer, real, index, uniqueIndex } from 'drizzle-orm/sqlite-core'
+
+// ── history ──────────────────────────────────────────────
+export const history = sqliteTable(
+  'history',
+  {
+    id: text('id').primaryKey(),
+    originalText: text('original_text').notNull(),
+    polishedText: text('polished_text'),
+    focusedApp: text('focused_app'),
+    focusedAppName: text('focused_app_name'),
+    focusedAppWindowTitle: text('focused_app_window_title'),
+    mode: text('mode', { enum: ['dictation', 'translate', 'command'] })
+      .notNull()
+      .default('dictation'),
+    status: text('status', { enum: ['completed', 'cancelled', 'error'] })
+      .notNull()
+      .default('completed'),
+    errorCode: text('error_code'),
+    audioLocalPath: text('audio_local_path'),
+    duration: real('duration').notNull(),
+    detectedLanguage: text('detected_language'),
+    micDevice: text('mic_device'),
+    wordCount: integer('word_count').notNull().default(0),
+    sttModel: text('stt_model'),
+    llmModel: text('llm_model'),
+    sttLatencyMs: integer('stt_latency_ms'),
+    llmLatencyMs: integer('llm_latency_ms'),
+    createdAt: integer('created_at').notNull(),
+    updatedAt: integer('updated_at').notNull(),
+    appVersion: text('app_version').notNull().default('1.0.0')
+  },
+  (table) => [
+    index('idx_history_created_at').on(table.createdAt),
+    index('idx_history_status').on(table.status),
+    index('idx_history_detected_language').on(table.detectedLanguage),
+    index('idx_history_focused_app_name').on(table.focusedAppName),
+    index('idx_history_mode').on(table.mode)
+  ]
+)
+
+// ── dictionary ───────────────────────────────────────────
+export const dictionary = sqliteTable(
+  'dictionary',
+  {
+    id: text('id').primaryKey(),
+    word: text('word').notNull(),
+    pronunciation: text('pronunciation'),
+    category: text('category', { enum: ['user', 'auto', 'technical'] })
+      .notNull()
+      .default('user'),
+    usageCount: integer('usage_count').notNull().default(0),
+    lastUsedAt: integer('last_used_at'),
+    createdAt: integer('created_at').notNull(),
+    updatedAt: integer('updated_at').notNull()
+  },
+  (table) => [
+    uniqueIndex('idx_dictionary_word_category').on(table.word, table.category),
+    index('idx_dictionary_created_at').on(table.createdAt),
+    index('idx_dictionary_usage_count').on(table.usageCount)
+  ]
+)
+
+// ── stats ────────────────────────────────────────────────
+export const stats = sqliteTable('stats', {
+  id: integer('id').primaryKey(),
+  totalDuration: real('total_duration').notNull().default(0),
+  totalWords: integer('total_words').notNull().default(0),
+  sessionCount: integer('session_count').notNull().default(0),
+  streakDays: integer('streak_days').notNull().default(0),
+  lastSessionAt: integer('last_session_at'),
+  lastUpdated: integer('last_updated').notNull()
+})
+
+// ── 타입 추출 ────────────────────────────────────────────
+export type History = typeof history.$inferSelect
+export type NewHistory = typeof history.$inferInsert
+export type Dictionary = typeof dictionary.$inferSelect
+export type NewDictionary = typeof dictionary.$inferInsert
+export type Stats = typeof stats.$inferSelect

src/main/ipc/dictionary-handlers.ts

@@ -0,0 +1,56 @@
+// src/main/ipc/dictionary-handlers.ts
+
+import { ipcMain } from 'electron'
+import { IPC_CHANNELS } from '@shared/ipc-channels'
+import { ipcSuccess, ipcError, ErrorCode } from '@shared/errors'
+import { getDictionaryService } from '../services/DictionaryService'
+import type {
+  DictionaryQueryParams,
+  DictionaryAddParams,
+  DictionaryUpdateParams,
+  DictionaryDeleteParams,
+  DictionarySearchParams
+} from '@shared/types'
+
+export function registerDictionaryHandlers(): void {
+  ipcMain.handle(IPC_CHANNELS.DICTIONARY.GET_ALL, async (_event, params: DictionaryQueryParams) => {
+    try {
+      return ipcSuccess(getDictionaryService().list(params))
+    } catch {
+      return ipcError(ErrorCode.DBQueryFailed, 'Failed to get dictionary')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.DICTIONARY.ADD, async (_event, params: DictionaryAddParams) => {
+    try {
+      return ipcSuccess(getDictionaryService().add(params))
+    } catch {
+      return ipcError(ErrorCode.DBWriteFailed, 'Failed to add dictionary entry')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.DICTIONARY.UPDATE, async (_event, params: DictionaryUpdateParams) => {
+    try {
+      return ipcSuccess(getDictionaryService().update(params))
+    } catch {
+      return ipcError(ErrorCode.DBWriteFailed, 'Failed to update dictionary entry')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.DICTIONARY.DELETE, async (_event, params: DictionaryDeleteParams) => {
+    try {
+      getDictionaryService().delete(params.id)
+      return ipcSuccess(undefined)
+    } catch {
+      return ipcError(ErrorCode.DBWriteFailed, 'Failed to delete dictionary entry')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.DICTIONARY.SEARCH, async (_event, params: DictionarySearchParams) => {
+    try {
+      return ipcSuccess(getDictionaryService().search(params))
+    } catch {
+      return ipcError(ErrorCode.DBQueryFailed, 'Failed to search dictionary')
+    }
+  })
+}

src/main/ipc/history-handlers.ts

@@ -0,0 +1,64 @@
+// src/main/ipc/history-handlers.ts
+
+import { ipcMain } from 'electron'
+import { IPC_CHANNELS } from '@shared/ipc-channels'
+import { ipcSuccess, ipcError, ErrorCode } from '@shared/errors'
+import { getHistoryService } from '../services/HistoryService'
+import type {
+  HistoryQueryParams,
+  HistoryGetByIdParams,
+  HistoryDeleteParams,
+  HistorySearchParams
+} from '@shared/types'
+
+export function registerHistoryHandlers(): void {
+  ipcMain.handle(IPC_CHANNELS.HISTORY.GET_ALL, async (_event, params: HistoryQueryParams) => {
+    try {
+      return ipcSuccess(getHistoryService().list(params))
+    } catch {
+      return ipcError(ErrorCode.DBQueryFailed, 'Failed to get history')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.HISTORY.GET_BY_ID, async (_event, params: HistoryGetByIdParams) => {
+    try {
+      return ipcSuccess(getHistoryService().getById(params.id))
+    } catch {
+      return ipcError(ErrorCode.DBQueryFailed, 'Failed to get history entry')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.HISTORY.DELETE, async (_event, params: HistoryDeleteParams) => {
+    try {
+      getHistoryService().delete(params.id)
+      return ipcSuccess(undefined)
+    } catch {
+      return ipcError(ErrorCode.DBWriteFailed, 'Failed to delete history entry')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.HISTORY.DELETE_ALL, async () => {
+    try {
+      getHistoryService().deleteAll()
+      return ipcSuccess(undefined)
+    } catch {
+      return ipcError(ErrorCode.DBWriteFailed, 'Failed to delete all history')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.HISTORY.SEARCH, async (_event, params: HistorySearchParams) => {
+    try {
+      return ipcSuccess(getHistoryService().search(params))
+    } catch {
+      return ipcError(ErrorCode.DBQueryFailed, 'Failed to search history')
+    }
+  })
+
+  ipcMain.handle(IPC_CHANNELS.STATS.GET_SUMMARY, async () => {
+    try {
+      return ipcSuccess(getHistoryService().getStats())
+    } catch {
+      return ipcError(ErrorCode.DBQueryFailed, 'Failed to get stats')
+    }
+  })
+}

src/main/ipc/index.ts

@@ -8,6 +8,8 @@ import { registerVoiceHandlers } from './voice-handlers'
 import { registerSTTHandlers } from './stt-handlers'
 import { registerHotkeyHandlers } from './hotkey-handlers'
 import { registerLLMHandlers } from './llm-handlers'
+import { registerHistoryHandlers } from './history-handlers'
+import { registerDictionaryHandlers } from './dictionary-handlers'
 import { getLogger } from '../services/LoggerService'
 
 const logger = getLogger('ipc')
@@ -21,5 +23,7 @@ export function registerAllIpcHandlers(): void {
   registerSTTHandlers()
   registerHotkeyHandlers()
   registerLLMHandlers()
+  registerHistoryHandlers()
+  registerDictionaryHandlers()
   logger.info('All IPC handlers registered')
 }

src/main/services/DictionaryService.ts

@@ -0,0 +1,170 @@
+// src/main/services/DictionaryService.ts
+// 사용자 커스텀 단어 사전. 설계서 01/03 IDictionaryService 구현.
+
+import { eq, like, desc, count, sql } from 'drizzle-orm'
+import { nanoid } from 'nanoid'
+import { getDatabase } from '../db'
+import { dictionary } from '../db/schema'
+import type { Dictionary, NewDictionary } from '../db/schema'
+import { getLogger } from './LoggerService'
+import type {
+  DictionaryEntry,
+  DictionaryQueryParams,
+  DictionaryPage,
+  DictionaryAddParams,
+  DictionaryUpdateParams,
+  DictionarySearchParams
+} from '@shared/types'
+
+const logger = getLogger('DictionaryService')
+
+class DictionaryService {
+  add(params: DictionaryAddParams): DictionaryEntry {
+    const db = getDatabase()
+    const now = Date.now()
+    const id = nanoid()
+
+    const entry: NewDictionary = {
+      id,
+      word: params.word,
+      pronunciation: params.pronunciation ?? null,
+      category: params.category ?? 'user',
+      usageCount: 0,
+      lastUsedAt: null,
+      createdAt: now,
+      updatedAt: now
+    }
+
+    db.insert(dictionary).values(entry).run()
+    logger.info(`Dictionary entry added: "${params.word}"`)
+    return this._toEntry(entry as Dictionary)
+  }
+
+  update(params: DictionaryUpdateParams): DictionaryEntry | null {
+    const db = getDatabase()
+    const existing = db.select().from(dictionary).where(eq(dictionary.id, params.id)).get()
+    if (!existing) return null
+
+    const updates: Partial<NewDictionary> = { updatedAt: Date.now() }
+    if (params.word !== undefined) updates.word = params.word
+    if (params.pronunciation !== undefined) updates.pronunciation = params.pronunciation
+    if (params.category !== undefined) updates.category = params.category
+
+    db.update(dictionary).set(updates).where(eq(dictionary.id, params.id)).run()
+
+    const updated = db.select().from(dictionary).where(eq(dictionary.id, params.id)).get()
+    return updated ? this._toEntry(updated) : null
+  }
+
+  delete(id: string): boolean {
+    const db = getDatabase()
+    const result = db.delete(dictionary).where(eq(dictionary.id, id)).run()
+    return result.changes > 0
+  }
+
+  list(params: DictionaryQueryParams): DictionaryPage {
+    const db = getDatabase()
+    const { page, pageSize } = params
+
+    const totalResult = db.select({ count: count() }).from(dictionary).get()
+    const total = totalResult?.count ?? 0
+
+    const entries = db
+      .select()
+      .from(dictionary)
+      .orderBy(desc(dictionary.createdAt))
+      .limit(pageSize)
+      .offset(page * pageSize)
+      .all()
+
+    return {
+      entries: entries.map((e) => this._toEntry(e)),
+      total,
+      page,
+      pageSize,
+      totalPages: Math.ceil(total / pageSize)
+    }
+  }
+
+  search(params: DictionarySearchParams): DictionaryPage {
+    const db = getDatabase()
+    const { query, page, pageSize } = params
+    const pattern = `%${query}%`
+
+    const totalResult = db
+      .select({ count: count() })
+      .from(dictionary)
+      .where(like(dictionary.word, pattern))
+      .get()
+    const total = totalResult?.count ?? 0
+
+    const entries = db
+      .select()
+      .from(dictionary)
+      .where(like(dictionary.word, pattern))
+      .orderBy(desc(dictionary.usageCount))
+      .limit(pageSize)
+      .offset(page * pageSize)
+      .all()
+
+    return {
+      entries: entries.map((e) => this._toEntry(e)),
+      total,
+      page,
+      pageSize,
+      totalPages: Math.ceil(total / pageSize)
+    }
+  }
+
+  incrementUsage(id: string): void {
+    const db = getDatabase()
+    db.update(dictionary)
+      .set({
+        usageCount: sql`usage_count + 1`,
+        lastUsedAt: Date.now()
+      })
+      .where(eq(dictionary.id, id))
+      .run()
+  }
+
+  /**
+   * 사전 단어 목록을 STT initialPrompt 형태로 반환한다.
+   */
+  getPromptHints(limit = 50): string {
+    const db = getDatabase()
+    const words = db
+      .select({ word: dictionary.word })
+      .from(dictionary)
+      .orderBy(desc(dictionary.usageCount))
+      .limit(limit)
+      .all()
+
+    return words.map((w) => w.word).join(', ')
+  }
+
+  dispose(): void {
+    logger.info('DictionaryService disposed')
+  }
+
+  private _toEntry(row: Dictionary): DictionaryEntry {
+    return {
+      id: row.id,
+      word: row.word,
+      pronunciation: row.pronunciation,
+      category: row.category as DictionaryEntry['category'],
+      usageCount: row.usageCount,
+      lastUsedAt: row.lastUsedAt,
+      createdAt: row.createdAt,
+      updatedAt: row.updatedAt
+    }
+  }
+}
+
+let instance: DictionaryService | null = null
+
+export function getDictionaryService(): DictionaryService {
+  if (!instance) {
+    instance = new DictionaryService()
+  }
+  return instance
+}

src/main/services/HistoryService.ts

@@ -0,0 +1,219 @@
+// src/main/services/HistoryService.ts
+// SQLite 기반 전사/명령 이력 저장. 설계서 01/03 IHistoryService 구현.
+
+import { eq, desc, like, and, sql, count } from 'drizzle-orm'
+import { nanoid } from 'nanoid'
+import { getDatabase } from '../db'
+import { history, stats } from '../db/schema'
+import type { History, NewHistory } from '../db/schema'
+import { getLogger } from './LoggerService'
+import type {
+  HistoryEntry,
+  HistoryQueryParams,
+  HistoryPage,
+  HistorySearchParams,
+  StatsSummary
+} from '@shared/types'
+
+const logger = getLogger('HistoryService')
+
+class HistoryService {
+  create(input: Omit<NewHistory, 'id' | 'createdAt' | 'updatedAt'>): HistoryEntry {
+    const db = getDatabase()
+    const now = Date.now()
+    const id = nanoid()
+
+    const entry: NewHistory = {
+      id,
+      ...input,
+      createdAt: now,
+      updatedAt: now
+    }
+
+    db.insert(history).values(entry).run()
+
+    // stats 싱글톤 업데이트
+    this._updateStats(input.duration, input.wordCount)
+
+    logger.info(`History entry created: ${id}`)
+    return this._toEntry(entry as History)
+  }
+
+  getById(id: string): HistoryEntry | null {
+    const db = getDatabase()
+    const row = db.select().from(history).where(eq(history.id, id)).get()
+    return row ? this._toEntry(row) : null
+  }
+
+  list(params: HistoryQueryParams): HistoryPage {
+    const db = getDatabase()
+    const { page, pageSize } = params
+
+    const totalResult = db.select({ count: count() }).from(history).get()
+    const total = totalResult?.count ?? 0
+
+    const entries = db
+      .select()
+      .from(history)
+      .orderBy(desc(history.createdAt))
+      .limit(pageSize)
+      .offset(page * pageSize)
+      .all()
+
+    return {
+      entries: entries.map((e) => this._toEntry(e)),
+      total,
+      page,
+      pageSize,
+      totalPages: Math.ceil(total / pageSize)
+    }
+  }
+
+  search(params: HistorySearchParams): HistoryPage {
+    const db = getDatabase()
+    const { query, page, pageSize } = params
+    const pattern = `%${query}%`
+
+    const conditions = and(
+      like(history.originalText, pattern)
+    )
+
+    const totalResult = db
+      .select({ count: count() })
+      .from(history)
+      .where(conditions)
+      .get()
+    const total = totalResult?.count ?? 0
+
+    const entries = db
+      .select()
+      .from(history)
+      .where(conditions)
+      .orderBy(desc(history.createdAt))
+      .limit(pageSize)
+      .offset(page * pageSize)
+      .all()
+
+    return {
+      entries: entries.map((e) => this._toEntry(e)),
+      total,
+      page,
+      pageSize,
+      totalPages: Math.ceil(total / pageSize)
+    }
+  }
+
+  delete(id: string): boolean {
+    const db = getDatabase()
+    const result = db.delete(history).where(eq(history.id, id)).run()
+    return result.changes > 0
+  }
+
+  deleteAll(): void {
+    const db = getDatabase()
+    db.delete(history).run()
+    logger.info('All history entries deleted')
+  }
+
+  getStats(): StatsSummary {
+    const db = getDatabase()
+    const row = db.select().from(stats).where(eq(stats.id, 1)).get()
+
+    const todayStart = new Date()
+    todayStart.setHours(0, 0, 0, 0)
+    const todayMs = todayStart.getTime()
+
+    const todayResult = db
+      .select({
+        sessions: count(),
+        duration: sql<number>`COALESCE(SUM(duration), 0)`,
+        words: sql<number>`COALESCE(SUM(word_count), 0)`
+      })
+      .from(history)
+      .where(
+        and(
+          sql`created_at >= ${todayMs}`,
+          eq(history.status, 'completed')
+        )
+      )
+      .get()
+
+    return {
+      totalRecordingTimeMs: (row?.totalDuration ?? 0) * 1000,
+      totalWordCount: row?.totalWords ?? 0,
+      totalSessionCount: row?.sessionCount ?? 0,
+      todayRecordingTimeMs: (todayResult?.duration ?? 0) * 1000,
+      todayWordCount: todayResult?.words ?? 0,
+      todaySessionCount: todayResult?.sessions ?? 0,
+      streakDays: row?.streakDays ?? 0
+    }
+  }
+
+  /**
+   * 보존 정책에 따라 오래된 항목 정리 (30일 초과)
+   */
+  runRetentionCleanup(): number {
+    const db = getDatabase()
+    const cutoff = Date.now() - 30 * 24 * 60 * 60 * 1000
+    const result = db.delete(history).where(sql`created_at < ${cutoff}`).run()
+    if (result.changes > 0) {
+      logger.info(`Retention cleanup: ${result.changes} old entries removed`)
+    }
+    return result.changes
+  }
+
+  dispose(): void {
+    logger.info('HistoryService disposed')
+  }
+
+  private _updateStats(duration: number, wordCount: number): void {
+    const db = getDatabase()
+    const now = Date.now()
+
+    db.update(stats)
+      .set({
+        totalDuration: sql`total_duration + ${duration}`,
+        totalWords: sql`total_words + ${wordCount}`,
+        sessionCount: sql`session_count + 1`,
+        lastSessionAt: now,
+        lastUpdated: now
+      })
+      .where(eq(stats.id, 1))
+      .run()
+  }
+
+  private _toEntry(row: History): HistoryEntry {
+    return {
+      id: row.id,
+      originalText: row.originalText,
+      polishedText: row.polishedText,
+      focusedApp: row.focusedApp,
+      focusedAppName: row.focusedAppName,
+      focusedAppWindowTitle: row.focusedAppWindowTitle,
+      mode: row.mode as HistoryEntry['mode'],
+      status: row.status as HistoryEntry['status'],
+      errorCode: row.errorCode,
+      audioLocalPath: row.audioLocalPath,
+      duration: row.duration,
+      detectedLanguage: row.detectedLanguage,
+      micDevice: row.micDevice,
+      wordCount: row.wordCount,
+      sttModel: row.sttModel,
+      llmModel: row.llmModel,
+      sttLatencyMs: row.sttLatencyMs,
+      llmLatencyMs: row.llmLatencyMs,
+      createdAt: row.createdAt,
+      updatedAt: row.updatedAt,
+      appVersion: row.appVersion
+    }
+  }
+}
+
+let instance: HistoryService | null = null
+
+export function getHistoryService(): HistoryService {
+  if (!instance) {
+    instance = new HistoryService()
+  }
+  return instance
+}

src/main/services/index.ts

@@ -26,3 +26,5 @@ export { getVoiceModeService } from './VoiceModeService'
 export { getAudioCaptureService } from './AudioCaptureService'
 export { getTextInsertService } from './TextInsertService'
 export { getLocalLLMService } from './LocalLLMService'
+export { getHistoryService } from './HistoryService'
+export { getDictionaryService } from './DictionaryService'

src/preload/index.ts

@@ -47,6 +47,20 @@ import type {
   SetServerUrlParams,
   LLMStatusChangedEvent,
   LLMProcessProgressEvent,
+  HistoryQueryParams,
+  HistoryPage,
+  HistoryGetByIdParams,
+  HistoryEntry,
+  HistoryDeleteParams,
+  HistorySearchParams,
+  DictionaryQueryParams,
+  DictionaryPage,
+  DictionaryEntry,
+  DictionaryAddParams,
+  DictionaryUpdateParams,
+  DictionaryDeleteParams,
+  DictionarySearchParams,
+  StatsSummary,
   PermissionStatus
 } from '@shared/types'
 import type { IPCResult } from '@shared/errors'
@@ -169,6 +183,40 @@ const electronAPI = {
       on(IPC_CHANNELS.LLM.PROCESS_PROGRESS, cb)
   },
 
+  // ── History ────────────────────────────────────────────
+  history: {
+    getAll: (params: HistoryQueryParams) =>
+      invoke<HistoryPage>(IPC_CHANNELS.HISTORY.GET_ALL, params),
+    getById: (params: HistoryGetByIdParams) =>
+      invoke<HistoryEntry | null>(IPC_CHANNELS.HISTORY.GET_BY_ID, params),
+    delete: (params: HistoryDeleteParams) =>
+      invoke<void>(IPC_CHANNELS.HISTORY.DELETE, params),
+    deleteAll: () => invoke<void>(IPC_CHANNELS.HISTORY.DELETE_ALL),
+    search: (params: HistorySearchParams) =>
+      invoke<HistoryPage>(IPC_CHANNELS.HISTORY.SEARCH, params),
+    onAdded: (cb: (e: HistoryEntry) => void): Unsubscribe =>
+      on(IPC_CHANNELS.HISTORY.ADDED, cb)
+  },
+
+  // ── Dictionary ─────────────────────────────────────────
+  dictionary: {
+    getAll: (params: DictionaryQueryParams) =>
+      invoke<DictionaryPage>(IPC_CHANNELS.DICTIONARY.GET_ALL, params),
+    add: (params: DictionaryAddParams) =>
+      invoke<DictionaryEntry>(IPC_CHANNELS.DICTIONARY.ADD, params),
+    update: (params: DictionaryUpdateParams) =>
+      invoke<DictionaryEntry>(IPC_CHANNELS.DICTIONARY.UPDATE, params),
+    delete: (params: DictionaryDeleteParams) =>
+      invoke<void>(IPC_CHANNELS.DICTIONARY.DELETE, params),
+    search: (params: DictionarySearchParams) =>
+      invoke<DictionaryPage>(IPC_CHANNELS.DICTIONARY.SEARCH, params)
+  },
+
+  // ── Stats ──────────────────────────────────────────────
+  stats: {
+    getSummary: () => invoke<StatsSummary>(IPC_CHANNELS.STATS.GET_SUMMARY)
+  },
+
   // ── Window ─────────────────────────────────────────────
   window: {
     minimize: () => send(IPC_CHANNELS.WINDOW.MINIMIZE),

src/renderer/components/AppLayout.tsx

@@ -17,6 +17,8 @@ import HistoryIcon from '@mui/icons-material/History'
 import MenuBookIcon from '@mui/icons-material/MenuBook'
 import SettingsIcon from '@mui/icons-material/Settings'
 import { DashboardPage } from '../pages/DashboardPage'
+import { HistoryPage } from '../pages/HistoryPage'
+import { DictionaryPage } from '../pages/DictionaryPage'
 import { SettingsModal } from './SettingsModal'
 import { StatusBar } from './StatusBar'
 
@@ -98,16 +100,8 @@ export function AppLayout(): React.ReactElement {
         }}
       >
         {currentRoute === 'dashboard' && <DashboardPage />}
-        {currentRoute === 'history' && (
+        {currentRoute === 'history' && <HistoryPage />}
-          <Typography variant="h5" color="text.secondary">
+        {currentRoute === 'dictionary' && <DictionaryPage />}
-            History (Phase 5)
-          </Typography>
-        )}
-        {currentRoute === 'dictionary' && (
-          <Typography variant="h5" color="text.secondary">
-            Dictionary (Phase 5)
-          </Typography>
-        )}
       </Box>
     </Box>
       <StatusBar />

src/renderer/pages/DashboardPage.tsx

@@ -1,10 +1,12 @@
 // src/renderer/pages/DashboardPage.tsx
 
+import { useState, useEffect } from 'react'
 import { Box, Card, CardContent, Typography, Grid } from '@mui/material'
 import MicIcon from '@mui/icons-material/Mic'
 import TimerIcon from '@mui/icons-material/Timer'
 import TextFieldsIcon from '@mui/icons-material/TextFields'
 import TodayIcon from '@mui/icons-material/Today'
+import type { StatsSummary } from '@shared/types'
 
 interface StatCardProps {
   title: string
@@ -28,7 +30,33 @@ function StatCard({ title, value, icon }: StatCardProps): React.ReactElement {
   )
 }
 
+function formatTime(ms: number): string {
+  const totalSec = Math.round(ms / 1000)
+  const hours = Math.floor(totalSec / 3600)
+  const minutes = Math.floor((totalSec % 3600) / 60)
+  const seconds = totalSec % 60
+  if (hours > 0) return `${hours}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`
+  return `${minutes}:${seconds.toString().padStart(2, '0')}`
+}
+
 export function DashboardPage(): React.ReactElement {
+  const [stats, setStats] = useState<StatsSummary | null>(null)
+
+  useEffect(() => {
+    window.electronAPI.stats.getSummary().then((result) => {
+      if (result.success) setStats(result.data)
+    })
+
+    // 30초마다 갱신
+    const interval = setInterval(() => {
+      window.electronAPI.stats.getSummary().then((result) => {
+        if (result.success) setStats(result.data)
+      })
+    }, 30000)
+
+    return () => clearInterval(interval)
+  }, [])
+
   return (
     <Box>
       <Typography variant="h5" sx={{ mb: 3, fontWeight: 600 }}>
@@ -37,30 +65,66 @@ export function DashboardPage(): React.ReactElement {
 
       <Grid container spacing={2}>
         <Grid size={{ xs: 12, sm: 6, md: 3 }}>
-          <StatCard title="Total Sessions" value="0" icon={<MicIcon />} />
+          <StatCard
+            title="Total Sessions"
+            value={String(stats?.totalSessionCount ?? 0)}
+            icon={<MicIcon />}
+          />
         </Grid>
         <Grid size={{ xs: 12, sm: 6, md: 3 }}>
-          <StatCard title="Total Time" value="0:00" icon={<TimerIcon />} />
+          <StatCard
+            title="Total Time"
+            value={formatTime(stats?.totalRecordingTimeMs ?? 0)}
+            icon={<TimerIcon />}
+          />
         </Grid>
         <Grid size={{ xs: 12, sm: 6, md: 3 }}>
-          <StatCard title="Total Words" value="0" icon={<TextFieldsIcon />} />
+          <StatCard
+            title="Total Words"
+            value={String(stats?.totalWordCount ?? 0)}
+            icon={<TextFieldsIcon />}
+          />
         </Grid>
         <Grid size={{ xs: 12, sm: 6, md: 3 }}>
-          <StatCard title="Streak" value="0 days" icon={<TodayIcon />} />
+          <StatCard
+            title="Streak"
+            value={`${stats?.streakDays ?? 0} days`}
+            icon={<TodayIcon />}
+          />
         </Grid>
       </Grid>
 
-      <Box sx={{ mt: 4 }}>
+      {/* Today's stats */}
+      <Box sx={{ mt: 3 }}>
         <Typography variant="h6" sx={{ mb: 2 }}>
-          Recent Sessions
+          Today
         </Typography>
-        <Card>
+        <Grid container spacing={2}>
-          <CardContent>
+          <Grid size={{ xs: 12, sm: 4 }}>
-            <Typography variant="body2" color="text.secondary" sx={{ textAlign: 'center', py: 4 }}>
+            <Card>
-              No sessions yet. Press the hotkey to start recording.
+              <CardContent>
-            </Typography>
+                <Typography variant="body2" color="text.secondary">Sessions</Typography>
-          </CardContent>
+                <Typography variant="h5">{stats?.todaySessionCount ?? 0}</Typography>
-        </Card>
+              </CardContent>
+            </Card>
+          </Grid>
+          <Grid size={{ xs: 12, sm: 4 }}>
+            <Card>
+              <CardContent>
+                <Typography variant="body2" color="text.secondary">Time</Typography>
+                <Typography variant="h5">{formatTime(stats?.todayRecordingTimeMs ?? 0)}</Typography>
+              </CardContent>
+            </Card>
+          </Grid>
+          <Grid size={{ xs: 12, sm: 4 }}>
+            <Card>
+              <CardContent>
+                <Typography variant="body2" color="text.secondary">Words</Typography>
+                <Typography variant="h5">{stats?.todayWordCount ?? 0}</Typography>
+              </CardContent>
+            </Card>
+          </Grid>
+        </Grid>
       </Box>
     </Box>
   )

src/renderer/pages/DictionaryPage.tsx

@@ -0,0 +1,173 @@
+// src/renderer/pages/DictionaryPage.tsx
+
+import { useState, useEffect, useCallback } from 'react'
+import {
+  Box,
+  Typography,
+  TextField,
+  Button,
+  List,
+  ListItem,
+  ListItemText,
+  IconButton,
+  Chip,
+  Dialog,
+  DialogTitle,
+  DialogContent,
+  DialogActions,
+  Card,
+  CardContent,
+  InputAdornment
+} from '@mui/material'
+import AddIcon from '@mui/icons-material/Add'
+import DeleteIcon from '@mui/icons-material/Delete'
+import SearchIcon from '@mui/icons-material/Search'
+import type { DictionaryEntry, DictionaryPage as DictPageData } from '@shared/types'
+
+const PAGE_SIZE = 50
+
+export function DictionaryPage(): React.ReactElement {
+  const [data, setData] = useState<DictPageData | null>(null)
+  const [search, setSearch] = useState('')
+  const [loading, setLoading] = useState(true)
+  const [addOpen, setAddOpen] = useState(false)
+  const [newWord, setNewWord] = useState('')
+  const [newPronunciation, setNewPronunciation] = useState('')
+
+  const loadData = useCallback(async () => {
+    setLoading(true)
+    const result = search.trim()
+      ? await window.electronAPI.dictionary.search({ query: search, page: 0, pageSize: PAGE_SIZE })
+      : await window.electronAPI.dictionary.getAll({ page: 0, pageSize: PAGE_SIZE })
+
+    if (result.success) {
+      setData(result.data)
+    }
+    setLoading(false)
+  }, [search])
+
+  useEffect(() => {
+    loadData()
+  }, [loadData])
+
+  const handleAdd = async () => {
+    if (!newWord.trim()) return
+    await window.electronAPI.dictionary.add({
+      word: newWord.trim(),
+      pronunciation: newPronunciation.trim() || undefined
+    })
+    setNewWord('')
+    setNewPronunciation('')
+    setAddOpen(false)
+    loadData()
+  }
+
+  const handleDelete = async (id: string) => {
+    await window.electronAPI.dictionary.delete({ id })
+    loadData()
+  }
+
+  return (
+    <Box>
+      <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', mb: 2 }}>
+        <Typography variant="h5" sx={{ fontWeight: 600 }}>
+          Dictionary
+        </Typography>
+        <Button
+          variant="contained"
+          startIcon={<AddIcon />}
+          onClick={() => setAddOpen(true)}
+          size="small"
+        >
+          Add Word
+        </Button>
+      </Box>
+
+      <TextField
+        placeholder="Search words..."
+        value={search}
+        onChange={(e) => setSearch(e.target.value)}
+        fullWidth
+        sx={{ mb: 2 }}
+        slotProps={{
+          input: {
+            startAdornment: (
+              <InputAdornment position="start">
+                <SearchIcon />
+              </InputAdornment>
+            )
+          }
+        }}
+      />
+
+      {loading ? (
+        <Typography color="text.secondary">Loading...</Typography>
+      ) : !data || data.entries.length === 0 ? (
+        <Card>
+          <CardContent>
+            <Typography color="text.secondary" sx={{ textAlign: 'center', py: 4 }}>
+              {search ? 'No words found.' : 'No words yet. Add custom words for better STT accuracy.'}
+            </Typography>
+          </CardContent>
+        </Card>
+      ) : (
+        <List>
+          {data.entries.map((entry: DictionaryEntry) => (
+            <ListItem
+              key={entry.id}
+              divider
+              secondaryAction={
+                <IconButton size="small" onClick={() => handleDelete(entry.id)}>
+                  <DeleteIcon fontSize="small" />
+                </IconButton>
+              }
+            >
+              <ListItemText
+                primary={entry.word}
+                secondary={
+                  <Box sx={{ display: 'flex', gap: 1, mt: 0.5 }}>
+                    {entry.pronunciation && (
+                      <Typography variant="caption" color="text.secondary">
+                        [{entry.pronunciation}]
+                      </Typography>
+                    )}
+                    <Chip label={entry.category} size="small" variant="outlined" />
+                    <Chip label={`used ${entry.usageCount}x`} size="small" variant="outlined" />
+                  </Box>
+                }
+              />
+            </ListItem>
+          ))}
+        </List>
+      )}
+
+      {/* Add Word Dialog */}
+      <Dialog open={addOpen} onClose={() => setAddOpen(false)} maxWidth="xs" fullWidth>
+        <DialogTitle>Add Word</DialogTitle>
+        <DialogContent>
+          <TextField
+            label="Word"
+            value={newWord}
+            onChange={(e) => setNewWord(e.target.value)}
+            fullWidth
+            autoFocus
+            sx={{ mt: 1 }}
+          />
+          <TextField
+            label="Pronunciation (optional)"
+            value={newPronunciation}
+            onChange={(e) => setNewPronunciation(e.target.value)}
+            fullWidth
+            sx={{ mt: 2 }}
+          />
+        </DialogContent>
+        <DialogActions>
+          <Button onClick={() => setAddOpen(false)}>Cancel</Button>
+          <Button onClick={handleAdd} variant="contained" disabled={!newWord.trim()}>
+            Add
+          </Button>
+        </DialogActions>
+      </Dialog>
+    </Box>
+  )
+}

src/renderer/pages/HistoryPage.tsx

@@ -0,0 +1,161 @@
+// src/renderer/pages/HistoryPage.tsx
+
+import { useState, useEffect, useCallback } from 'react'
+import {
+  Box,
+  Typography,
+  TextField,
+  List,
+  ListItem,
+  ListItemText,
+  IconButton,
+  Chip,
+  Pagination,
+  Card,
+  CardContent,
+  InputAdornment
+} from '@mui/material'
+import SearchIcon from '@mui/icons-material/Search'
+import DeleteIcon from '@mui/icons-material/Delete'
+import ContentCopyIcon from '@mui/icons-material/ContentCopy'
+import type { HistoryEntry, HistoryPage as HistoryPageData } from '@shared/types'
+
+const PAGE_SIZE = 20
+
+export function HistoryPage(): React.ReactElement {
+  const [data, setData] = useState<HistoryPageData | null>(null)
+  const [page, setPage] = useState(0)
+  const [search, setSearch] = useState('')
+  const [loading, setLoading] = useState(true)
+
+  const loadData = useCallback(async () => {
+    setLoading(true)
+    const result = search.trim()
+      ? await window.electronAPI.history.search({ query: search, page, pageSize: PAGE_SIZE })
+      : await window.electronAPI.history.getAll({ page, pageSize: PAGE_SIZE })
+
+    if (result.success) {
+      setData(result.data)
+    }
+    setLoading(false)
+  }, [page, search])
+
+  useEffect(() => {
+    loadData()
+  }, [loadData])
+
+  const handleDelete = async (id: string) => {
+    await window.electronAPI.history.delete({ id })
+    loadData()
+  }
+
+  const handleCopy = (text: string) => {
+    navigator.clipboard.writeText(text)
+  }
+
+  const formatDate = (ts: number) => {
+    return new Date(ts).toLocaleString('ko-KR', {
+      month: 'short',
+      day: 'numeric',
+      hour: '2-digit',
+      minute: '2-digit'
+    })
+  }
+
+  const formatDuration = (sec: number) => {
+    const m = Math.floor(sec / 60)
+    const s = Math.round(sec % 60)
+    return `${m}:${s.toString().padStart(2, '0')}`
+  }
+
+  return (
+    <Box>
+      <Typography variant="h5" sx={{ mb: 2, fontWeight: 600 }}>
+        History
+      </Typography>
+
+      <TextField
+        placeholder="Search transcriptions..."
+        value={search}
+        onChange={(e) => {
+          setSearch(e.target.value)
+          setPage(0)
+        }}
+        fullWidth
+        sx={{ mb: 2 }}
+        slotProps={{
+          input: {
+            startAdornment: (
+              <InputAdornment position="start">
+                <SearchIcon />
+              </InputAdornment>
+            )
+          }
+        }}
+      />
+
+      {loading ? (
+        <Typography color="text.secondary">Loading...</Typography>
+      ) : !data || data.entries.length === 0 ? (
+        <Card>
+          <CardContent>
+            <Typography color="text.secondary" sx={{ textAlign: 'center', py: 4 }}>
+              {search ? 'No results found.' : 'No history yet.'}
+            </Typography>
+          </CardContent>
+        </Card>
+      ) : (
+        <>
+          <List>
+            {data.entries.map((entry: HistoryEntry) => (
+              <ListItem
+                key={entry.id}
+                divider
+                secondaryAction={
+                  <Box sx={{ display: 'flex', gap: 0.5 }}>
+                    <IconButton
+                      size="small"
+                      onClick={() => handleCopy(entry.polishedText || entry.originalText)}
+                    >
+                      <ContentCopyIcon fontSize="small" />
+                    </IconButton>
+                    <IconButton size="small" onClick={() => handleDelete(entry.id)}>
+                      <DeleteIcon fontSize="small" />
+                    </IconButton>
+                  </Box>
+                }
+              >
+                <ListItemText
+                  primary={entry.polishedText || entry.originalText}
+                  secondary={
+                    <Box sx={{ display: 'flex', gap: 1, mt: 0.5, alignItems: 'center' }}>
+                      <Typography variant="caption" color="text.secondary">
+                        {formatDate(entry.createdAt)}
+                      </Typography>
+                      <Chip label={formatDuration(entry.duration)} size="small" variant="outlined" />
+                      {entry.detectedLanguage && (
+                        <Chip label={entry.detectedLanguage} size="small" variant="outlined" />
+                      )}
+                      <Chip label={entry.mode} size="small" variant="outlined" />
+                    </Box>
+                  }
+                  primaryTypographyProps={{ sx: { pr: 8 } }}
+                />
+              </ListItem>
+            ))}
+          </List>
+
+          {data.totalPages > 1 && (
+            <Box sx={{ display: 'flex', justifyContent: 'center', mt: 2 }}>
+              <Pagination
+                count={data.totalPages}
+                page={page + 1}
+                onChange={(_, p) => setPage(p - 1)}
+              />
+            </Box>
+          )}
+        </>
+      )}
+    </Box>
+  )
+}