🔥 Big update: tools, voice, themes
- 35 AI tools instead of 10. The AI can now: make HTTP requests, take screenshots, read/write the clipboard, query SQLite, get/set env vars, parse JSON/CSV, fetch system stats, prompt the user with a modal dialog, drive GUI automation (mouse / keyboard), and manage background processes.
- Voice input — 🎤 button in the input bar. Powered by free Google Web Speech (no API key).
- Light theme — Catppuccin Latte. Switch in Settings → Appearance.
- Auto-update — the app polls GitHub Releases at startup; an "Update available" button appears in the sidebar when a new version ships.
- Global chat search — sidebar search now matches both titles and message bodies.
- Per-message actions — Copy / Edit / Regenerate / Delete on every message on hover.
- Code-block Copy button on every fenced block.
- Accounts — local users with PBKDF2 password hashing.
- Smart scroll — auto-scrolls while streaming, but stops if you scrolled up to read.
- Streaming pipeline rewritten — no more crashes or desync on tool calls.