chore(v2): Initialize v2 branch with status tracking

- Create v2 branch for mc-webui direct device communication migration
- Add docs/v2/STATUS.md for development progress tracking
- Exclude PRD documents from git (local-only planning docs)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -103,3 +103,6 @@ docs/TEST-PLAN-Contact-Management-v2.md
 docs/github-discussion-*.md
 docs/github-response-spaces-in-device-name.md
 docs/check-compat-howto.md
+docs/PRD-mc-webui-2.md
+docs/PRD-mc-webui-2-en.html
+docs/PRD-mc-webui-2-pl.html

docs/v2/STATUS.md

@@ -0,0 +1,42 @@
+# mc-webui v2 — Development Status
+
+## Current Status: Planning Phase 0
+
+**Last updated:** 2026-02-28
+
+## Completed
+
+### PRD (Product Requirements Document)
+- Created comprehensive PRD with architecture decisions
+- Resolved all 5 open questions:
+  1. **Console:** meshcli-compatible syntax with structured output (tables/cards)
+  2. **TCP transport:** YES — dual transport via `MeshCore.create_tcp()` (PR #22)
+  3. **Multi-device:** YES — `DeviceRegistry` pattern, Phase 4
+  4. **WebSocket push:** YES — Flask-SocketIO `/chat` namespace replaces polling
+  5. **Backup:** YES — built-in SQLite backup with API endpoint
+- Confirmed Raspberry Pi 3+ compatibility (lower resource usage than v1)
+- Documents:
+  - `docs/PRD-mc-webui-2.md` (source, 713 lines)
+  - `docs/PRD-mc-webui-2-en.html` (shareable English)
+  - `docs/PRD-mc-webui-2-pl.html` (shareable Polish)
+
+### Key Architecture Decisions
+- **Branch strategy:** In-place evolution on `v2` branch (not a new repo)
+- **Database:** SQLite with WAL mode (replacing JSONL files)
+- **Container:** Single container (replacing two-container bridge)
+- **Framework:** Flask kept (with Flask-SocketIO added)
+- **Device communication:** `meshcore` Python library (>=2.2.0) — direct async API
+
+## Development Phases
+
+| Phase | Name | Status |
+|-------|------|--------|
+| 0 | Infrastructure & Foundation | **Planning** |
+| 1 | Direct Device Communication | Pending |
+| 2 | Feature Parity + Enhancements | Pending |
+| 3 | Advanced Features | Pending |
+| 4 | Multi-device & Scaling | Pending |
+
+## Next Steps
+- Create detailed implementation plan for Phase 0
+- Phase 0 scope: v2 branch, SQLite schema, Database class, project structure, env config