feat(aircoding): AirCoding V2 baseline — deterministic multi-agent architecture

Forked from OpenCode v1.17.4 with multi-agent system:
- 5 agents: aircoding, scheduler, worker, architect, reviewer
- Deterministic DAG scheduling engine (coordinator_tick)
- Tool whitelists as hard enforcement
- AirCoding validation plugin
- System prompt injection for routing
- V1 requirements: C4 docs, ADR, AGENTS.md, debug-log.md
- Design documents in docs/

.github/workflows/deploy.yml

@@ -0,0 +1,48 @@
+name: deploy
+
+on:
+  push:
+    branches:
+      - dev
+      - production
+  workflow_dispatch:
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  deploy:
+    if: github.repository == 'anomalyco/opencode' && (github.ref_name == 'dev' || github.ref_name == 'production')
+    runs-on: ubuntu-latest
+    environment: ${{ github.ref_name }}
+    steps:
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+
+      - uses: ./.github/actions/setup-bun
+
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: "24"
+
+      - uses: aws-actions/configure-aws-credentials@7474bc4690e29a8392af63c5b98e7449536d5c3a # v4.3.1
+        with:
+          role-to-assume: ${{ vars.AWS_DEPLOY_ROLE_ARN }}
+          role-session-name: opencode-${{ github.run_id }}
+          aws-region: us-east-1
+
+      - run: bun sst deploy --stage=${{ github.ref_name }}
+        env:
+          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          PLANETSCALE_SERVICE_TOKEN_NAME: ${{ secrets.PLANETSCALE_SERVICE_TOKEN_NAME }}
+          PLANETSCALE_SERVICE_TOKEN: ${{ secrets.PLANETSCALE_SERVICE_TOKEN }}
+          STRIPE_SECRET_KEY: ${{ github.ref_name == 'production' && secrets.STRIPE_SECRET_KEY_PROD || secrets.STRIPE_SECRET_KEY_DEV }}
+          HONEYCOMB_API_KEY: ${{ secrets.HONEYCOMB_API_KEY }}
+          SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
+          SENTRY_ORG: ${{ vars.SENTRY_ORG }}
+          SENTRY_PROJECT: ${{ vars.WEB_SENTRY_PROJECT }}
+          SENTRY_RELEASE: web@${{ github.sha }}
+          VITE_SENTRY_DSN: ${{ vars.WEB_SENTRY_DSN }}
+          VITE_SENTRY_RELEASE: web@${{ github.sha }}