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/desktop/scripts/prepare.ts

@@ -0,0 +1,9 @@
+#!/usr/bin/env bun
+import { Script } from "@opencode-ai/script"
+
+await import("./prebuild")
+
+const pkg = await Bun.file("./package.json").json()
+pkg.version = Script.version
+await Bun.write("./package.json", JSON.stringify(pkg, null, 2) + "\n")
+console.log(`Updated package.json version to ${Script.version}`)