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/.github/workflows/ci.yml

@@ -0,0 +1,78 @@
+name: ci
+
+on:
+  pull_request: {}
+  push: { branches: [main] }
+
+jobs:
+  build-test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    env:
+      NODE_OPTIONS: --max-old-space-size=4096
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
+          persist-credentials: false
+
+      - name: Verify codex-rs Cargo manifests inherit workspace settings
+        run: python3 .github/scripts/verify_cargo_workspace_manifests.py
+
+      - name: Verify codex-tui does not import codex-core directly
+        run: python3 .github/scripts/verify_tui_core_boundary.py
+
+      - name: Verify Bazel clippy flags match Cargo workspace lints
+        run: python3 .github/scripts/verify_bazel_clippy_lints.py
+
+      - name: Test Codex package builder
+        run: python3 -m unittest discover -s scripts/codex_package -p 'test_*.py'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@a8198c4bff370c8506180b035930dea56dbd5288 # v5
+        with:
+          run_install: false
+
+      - name: Setup Node.js
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+        with:
+          node-version: 22
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Stage npm package
+        id: stage_npm_package
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          set -euo pipefail
+          # Use a recent successful rust-release run that published the full
+          # cross-platform native payload required by the npm package layout.
+          # Passing the workflow URL directly avoids relying on old rust-v*
+          # branches remaining discoverable via `gh run list --branch ...`.
+          CODEX_VERSION=0.133.0-alpha.4
+          WORKFLOW_URL="https://github.com/openai/codex/actions/runs/26201494185"
+          OUTPUT_DIR="${RUNNER_TEMP}"
+          python3 ./scripts/stage_npm_packages.py \
+            --release-version "$CODEX_VERSION" \
+            --workflow-url "$WORKFLOW_URL" \
+            --package codex \
+            --output-dir "$OUTPUT_DIR"
+          PACK_OUTPUT="${OUTPUT_DIR}/codex-npm-${CODEX_VERSION}.tgz"
+          echo "pack_output=$PACK_OUTPUT" >> "$GITHUB_OUTPUT"
+
+      - name: Upload staged npm package artifact
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
+        with:
+          name: codex-npm-staging
+          path: ${{ steps.stage_npm_package.outputs.pack_output }}
+
+      - name: Ensure root README.md contains only ASCII and certain Unicode code points
+        run: ./scripts/asciicheck.py README.md
+      - name: Check root README ToC
+        run: python3 scripts/readme_toc.py README.md
+
+      - name: Prettier (run `pnpm run format:fix` to fix)
+        run: pnpm run format