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
- V1 requirements: C4 docs, ADR, AGENTS.md, debug-log.md
- Design documents in docs/

packages/cli/src/commands/handlers/service/restart.ts

@@ -0,0 +1,14 @@
+import { EOL } from "os"
+import * as Effect from "effect/Effect"
+import { Commands } from "../../commands"
+import { Runtime } from "../../../framework/runtime"
+import { Daemon } from "../../../services/daemon"
+
+export default Runtime.handler(
+  Commands.commands.service.commands.restart,
+  Effect.fn("cli.service.restart")(function* () {
+    const daemon = yield* Daemon.Service
+    yield* daemon.stop()
+    process.stdout.write((yield* daemon.start()) + EOL)
+  }),
+)