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/

packages/tui/test/index.test.tsx

@@ -0,0 +1,6 @@
+import { expect, test } from "bun:test"
+import { run } from "../src"
+
+test("exports the canonical application lifecycle", () => {
+  expect(typeof run).toBe("function")
+})