feat: initial implementation of OpenCode Voice Dictation
- TypeScript + Vite (vite-plugin-monkey) userscript
- Groq API integration with whisper-large-v3
- Tap-to-toggle recording with noise suppression
- Contenteditable text insertion for OpenCode web
- Ctrl+Space keyboard shortcut (desktop)
- Custom Whisper prompt for software development context
- Recording timer, toast notifications, auto-submit option
- 44 unit tests, 100% line coverage
- Biome linter, Knip, Vitest, CI/CD pipeline
- Bilingual README (EN/RU) with compatibility table
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