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/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "github",
+  "module": "index.ts",
+  "type": "module",
+  "private": true,
+  "license": "MIT",
+  "devDependencies": {
+    "@types/bun": "catalog:"
+  },
+  "peerDependencies": {
+    "typescript": "^5"
+  },
+  "dependencies": {
+    "@actions/core": "1.11.1",
+    "@actions/github": "6.0.1",
+    "@octokit/graphql": "9.0.1",
+    "@octokit/rest": "catalog:",
+    "@opencode-ai/sdk": "workspace:*"
+  }
+}