v1.0.0 배포 준비: CHANGELOG, LICENSE, 프로젝트 메타 파일 추가

- CHANGELOG.md: Phase 1~13 + 랜딩 페이지 전체 변경 이력
- LICENSE: MIT
- CONTRIBUTING.md: 개발 환경, 코드 표준, PR 프로세스
- SECURITY.md: 보안 정책, 취약점 보고 절차
- .editorconfig: 에디터 설정 통일 (indent, charset, eol)
- .nvmrc: Node.js 20
- .gitattributes: line ending 정규화, 바이너리 선언, linguist 설정
- .gitignore: site/dist, Python, Whisper 모델 등 누락 항목 추가

CHANGELOG.md

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+# Changelog
+
+All notable changes to D3RO Voice will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.0.0] - 2026-04-06
+
+### Added
+
+#### Core Pipeline (Phase 1-3)
+- Electron 33 + React 19 + MUI 7 + TypeScript strict mode
+- AudioCaptureService: SoX-based PCM16 16kHz mono microphone capture
+- LocalSTTService: faster-whisper Python sidecar (dual-condition flush pattern)
+- VoiceModeService: 9-state RecognitionState + 4-state AudioState dual state machine
+- HotkeyService: uiohook-napi global keyboard hooking (hold/toggle/double-press)
+- TextInsertService: clipboard save/set/Ctrl+V/restore via @nut-tree-fork/nut-js
+- RecordingTip popup: 9 wave bars with cosine distribution, thinking progress bar
+- ResultPopup: auto-close with mouse hover pause, copy button
+- Settings modal: General/Audio/STT/LLM tabs
+- System tray with close-to-tray support
+
+#### Cursor History Popup (Phase 3.5)
+- Ctrl+Shift+V global shortcut opens recent transcription history at cursor position
+- Arrow key navigation, Enter to paste, 1-9 direct select, ESC dismiss
+- focusable: false maintains active app focus
+
+#### LLM Integration (Phase 4)
+- LocalLLMService: Ollama REST API with NDJSON streaming
+- 6 system prompts: refine/translate/summarize/grammar/expand/custom
+- VoiceModeService LLM integration with original text fallback
+
+#### Database & History (Phase 5)
+- better-sqlite3 + drizzle-orm (WAL mode)
+- HistoryService: CRUD + search + stats + 30-day retention policy
+- DictionaryService: custom words + STT initialPrompt injection
+- Dashboard with real statistics
+
+#### Custom Instructions & i18n (Phase 6)
+- CustomInstructionService: 5 presets + user-defined CRUD
+- i18n system: ko/en with t() function and React context
+
+#### Build & Test (Phase 7)
+- vitest: 41 unit tests (HistoryService, DictionaryService, VoiceModeService, etc.)
+- electron-builder: NSIS installer for Windows x64
+- GitLab CI/CD: lint, typecheck, test, build, release pipeline
+- SoX download script, PyInstaller sidecar build script
+
+#### Speakly Pattern Enhancement (Phase 7.5)
+- SoundEffectService: WAV preload, fire-and-forget playback
+- AutoLaunchService: app.setLoginItemSettings
+- TextInsertService: basic insertion verification
+- VoiceModeService: sound effect integration on session events
+
+#### UI Redesign (Phase 8)
+- Industrial instrument aesthetic (dark theme, amber #f25b29 accent)
+- Design system: 9 DS components (CrtDisplay, InstrumentPanel, Led, PhysicalButton, MetalCard, PhosphorText, MetalDial, ScreenPanel, ButtonGroup)
+- d3roPalette SSOT: all colors via CSS custom properties
+- HotkeyRecordModal: key combination recording UI
+- DashboardPage: feature-focused layout with stats + history + system status
+
+#### Quality & UX (Phase 9)
+- 4-step onboarding wizard (welcome, mic, hotkey, Ollama)
+- Microphone test UI with level meter
+- Audio recording WAV file saving
+- MetalDial component with drag rotation
+- Ctrl+Shift+C command popup at cursor position
+- Dictionary inline editing
+- Ollama installation guide with nudging bubble
+- Real-time UI refresh on data changes
+
+#### Killer Features (Phase 10)
+- CaptionService: 3-second chunk continuous transcription with overlay popup
+- VoiceCommandService: keyword-to-command matching engine (4 preset keywords)
+- ScreenContextService: active window detection + selected text capture
+- ChainService: sequential LLM command pipeline with step-by-step events
+- MemoService: memo tags DB table + tag CRUD + markdown export
+- Shared components: EmptyStateCard, SearchInput, PageHeader, HistoryEntryCard
+- Shared utilities: formatters.ts (formatDuration, getDateKey, formatNumber)
+
+#### Monetization (Phase 11)
+- LicenseService: Free/Pro/Pro+ 3-tier system
+- Feature gating with 16 feature enums and tier-based access mapping
+- Daily usage quota tracking (Free: 20 dictation/day, 10 LLM/day)
+- LemonSqueezy API integration for license key activation
+- UpgradePromptModal, ProBadge, useProFeature hook
+- Settings License tab with tier comparison table
+
+#### Pro Features (Phase 12)
+- FileTranscriptionService: ffmpeg PCM conversion, 30s chunk sequential STT
+- MeetingSummaryService: caption session LLM summarization
+- DictationTemplateService: CRUD + session state machine, 3 presets
+
+#### Pro+ Premium (Phase 13)
+- VoiceConversationService: STT-LLM-TTS loop for voice conversations
+- TTSPlaybackService: Windows SAPI via PowerShell
+- RAGService: Ollama nomic-embed-text embeddings, SQLite vector storage, cosine similarity
+- KnowledgeBasePage: document management, indexing progress, Q&A UI
+- VoiceActionService: LLM JSON action plans, 6 presets, dangerous command blocking
+
+#### Landing Page
+- Promotional website at `site/` directory
+- Vite + React 19 + Tailwind CSS
+- 4 design references integrated into D3RO brand identity
+- CRT screen effects, crosshair decorations, noise textures (CSS only)
+- 10-language i18n: en/ko/ja/zh/es/fr/de/pt/ru/vi
+- GitHub Pages auto-deployment workflow
+
+### Technical Details
+- Total IPC channels: ~200+
+- Total services: 20+
+- Total error codes: 0-878
+- Design system components: 9
+- Supported languages (app): ko, en
+- Supported languages (landing): 10
+- Test count: 41 unit tests
+- Build target: Windows x64 NSIS installer
+
+## [Unreleased]
+
+### Planned
+- macOS / Linux support
+- Additional Whisper model management UI
+- Cloud-optional backup (encrypted, opt-in)
+- Plugin system for custom pipelines