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/openai-codex/.devcontainer/codex-install/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "codex-devcontainer-install",
+  "private": true,
+  "description": "Locked Codex CLI install boundary for the secure devcontainer.",
+  "dependencies": {
+    "@openai/codex": "0.121.0"
+  },
+  "engines": {
+    "node": ">=22",
+    "pnpm": ">=10.33.0"
+  },
+  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319"
+}