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/opencode-1.15.5/.github/workflows/beta.yml

@@ -0,0 +1,37 @@
+name: beta
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 * * * *"
+
+jobs:
+  sync:
+    runs-on: blacksmith-4vcpu-ubuntu-2404
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          fetch-depth: 0
+
+      - name: Setup Bun
+        uses: ./.github/actions/setup-bun
+
+      - name: Setup Git Committer
+        id: setup-git-committer
+        uses: ./.github/actions/setup-git-committer
+        with:
+          opencode-app-id: ${{ vars.OPENCODE_APP_ID }}
+          opencode-app-secret: ${{ secrets.OPENCODE_APP_SECRET }}
+
+      - name: Install OpenCode
+        run: bun i -g opencode-ai
+
+      - name: Sync beta branch
+        env:
+          GH_TOKEN: ${{ steps.setup-git-committer.outputs.token }}
+          OPENCODE_API_KEY: ${{ secrets.OPENCODE_API_KEY }}
+        run: bun script/beta.ts