Initial commit: AirCoding V1.0.0 Alpha architecture baseline

Complete architecture document set with multi-model review remediation:
- Frozen interface contracts, runtime semantics, DB schemas
- Event/tool/error/provider registries
- Scheduler and main agent state machines
- C4 module/code views, solution architecture, baseline V1
- Multi-model review reports and joint assessment
- Phase-gate remediation complete (P0/P1/P2/UX resolved)
- Implementation plan with T-000A through T-045
- Reference folders kept as placeholders only

reference/claude-hud-0.0.12/.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,21 @@
+---
+name: Bug report
+about: Report a reproducible problem
+labels: bug
+---
+
+## Summary
+
+## Steps to Reproduce
+
+## Expected Behavior
+
+## Actual Behavior
+
+## Environment
+
+- OS:
+- Node/Bun version:
+- Claude Code version:
+
+## Logs or Screenshots