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/context/local.test.ts

@@ -0,0 +1,22 @@
+import { expect, test } from "bun:test"
+import { parseModel, recentModels } from "../../src/context/local"
+
+test("parses model IDs containing slashes", () => {
+  expect(parseModel("provider/family/model")).toEqual({
+    providerID: "provider",
+    modelID: "family/model",
+  })
+})
+
+test("moves a model to the front, deduplicates, and limits recents", () => {
+  const recent = Array.from({ length: 12 }, (_, index) => ({
+    providerID: "provider",
+    modelID: `model-${index}`,
+  }))
+
+  expect(recentModels({ providerID: "provider", modelID: "model-5" }, recent)).toEqual([
+    { providerID: "provider", modelID: "model-5" },
+    ...recent.slice(0, 5),
+    ...recent.slice(6, 10),
+  ])
+})