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/enterprise/.gitignore

@@ -0,0 +1,26 @@
+dist
+.wrangler
+.output
+.vercel
+.netlify
+
+# Environment
+.env
+.env*.local
+
+# dependencies
+/node_modules
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+*.launch
+.settings/
+
+# Temp
+gitignore
+
+# System Files
+.DS_Store
+Thumbs.db