chore: push all design docs, V2 plan specs, and current working state

Includes AirPlan design documents, AircOding-alpha1-plan, AirPlanV2,
AirPlan-ParaV2, AirPlan-Para V1 reference docs, and all working code
changes across packages.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

test-oc.ts

@@ -0,0 +1,39 @@
+import { Effect } from "effect"
+
+const { configure } = await import("./packages/llm/src/opencode/providers/openai-compatible.js")
+const { LLMClient } = await import("./packages/llm/src/opencode/route/client.js")
+const { LLMRequest, Message } = await import("./packages/llm/src/opencode/schema/index.js")
+const { RequestExecutor } = await import("./packages/llm/src/opencode/route/executor.js")
+
+const apiKey = process.env.AIRCODING_API_KEY || ""
+if (!apiKey) { console.log("NO_KEY"); process.exit(0) }
+
+const baseURL = process.env.AIRCODING_API_URL || "https://open.bigmodel.cn/api/paas/v4"
+const provider = configure({ baseURL, apiKey })
+const model = provider.model("glm-5.1")
+
+const req = new LLMRequest({
+  model,
+  messages: [Message.user("say ok")],
+  generation: { maxTokens: 10 },
+})
+
+const executor = RequestExecutor.Service.of({
+  http: RequestExecutor.HttpExecutor.make({ fetch: globalThis.fetch }),
+  webSocket: undefined,
+})
+
+const program = Effect.gen(function* () {
+  const resp = yield* LLMClient.generate(req)
+  const texts: string[] = []
+  for (const ev of resp.events) {
+    const e = ev as any
+    if (e.text) texts.push(e.text)
+    if (e.content) for (const c of e.content) if (c.text) texts.push(c.text)
+  }
+  return texts.join("")
+})
+
+const layer = LLMClient.layer.pipe(Effect.provide(executor))
+const result = await Effect.runPromise(Effect.provide(program, layer))
+console.log("OK:", result)