feat: 品牌替换 + 启动优化 + AGENTS.md 模板定制

- 品牌替换：OpenCode/opencode → AirCoding/aircoding（16+ 文件）
- Logo ASCII art：修复 left/right 行数不匹配导致的启动崩溃
- 启动诊断：添加 OPENCODE_PRINT_TIMING 计时探针
- dev 模式默认 --pure 跳过外部插件加载
- AGENTS.md 模板：追加 AirCoding 多 Agent 专项段落
- architect prompt + plugin：强化 AGENTS.md 产出验证

packages/llm/test/exports.test.ts

@@ -0,0 +1,62 @@
+import { describe, expect, test } from "bun:test"
+import { LLM, LLMClient, Provider } from "@opencode-ai/llm"
+import { Route, Protocol } from "@opencode-ai/llm/route"
+import { Provider as ProviderSubpath } from "@opencode-ai/llm/provider"
+import {
+  CloudflareAIGateway,
+  CloudflareWorkersAI,
+  OpenAI,
+  OpenAICompatible,
+  OpenRouter,
+  XAI,
+} from "@opencode-ai/llm/providers"
+import * as GitHubCopilot from "@opencode-ai/llm/providers/github-copilot"
+import { OpenAIChat, OpenAICompatibleChat, OpenAIResponses } from "@opencode-ai/llm/protocols"
+import * as AnthropicMessages from "@opencode-ai/llm/protocols/anthropic-messages"
+
+describe("public exports", () => {
+  test("root exposes app-facing runtime APIs", () => {
+    expect(LLM.request).toBeFunction()
+    expect(LLMClient.Service).toBeFunction()
+    expect(LLMClient.layer).toBeDefined()
+    expect(Provider.make).toBeFunction()
+    expect(ProviderSubpath.make).toBe(Provider.make)
+  })
+
+  test("route barrel exposes route-authoring APIs", () => {
+    expect(Route.make).toBeFunction()
+    expect(Protocol.make).toBeFunction()
+  })
+
+  test("provider barrels expose user-facing facades", () => {
+    expect(OpenAI.model).toBeFunction()
+    expect(OpenAI.provider.model).toBe(OpenAI.model)
+    expect(OpenAI.provider.responses).toBe(OpenAI.responses)
+    expect(OpenAI.provider.responsesWebSocket).toBe(OpenAI.responsesWebSocket)
+    expect(OpenAI.configure({ apiKey: "fixture" }).responses).toBeFunction()
+    expect(OpenAICompatible.deepseek.model).toBeFunction()
+    expect(CloudflareAIGateway.configure).toBeFunction()
+    expect(CloudflareAIGateway.configure({ accountId: "fixture", gatewayApiKey: "fixture" }).model).toBeFunction()
+    expect(CloudflareWorkersAI.configure).toBeFunction()
+    expect(CloudflareWorkersAI.configure({ accountId: "fixture", apiKey: "fixture" }).model).toBeFunction()
+    expect(OpenRouter.model).toBeFunction()
+    expect(OpenRouter.provider.model).toBe(OpenRouter.model)
+    expect(XAI.model).toBeFunction()
+    expect(XAI.provider.model).toBe(XAI.model)
+    expect(XAI.provider.responses).toBe(XAI.responses)
+    expect(XAI.provider.chat).toBe(XAI.chat)
+    expect(XAI.configure({ apiKey: "fixture" }).responses("grok-4.3").route.id).toBe("openai-responses")
+    expect(XAI.configure({ apiKey: "fixture" }).chat("grok-4.3").route.id).toBe("openai-compatible-chat")
+    expect(
+      GitHubCopilot.configure({ baseURL: "https://api.githubcopilot.test", apiKey: "fixture" }).model,
+    ).toBeFunction()
+  })
+
+  test("protocol barrels expose supported low-level routes", () => {
+    expect(OpenAIChat.route.id).toBe("openai-chat")
+    expect(OpenAICompatibleChat.route.id).toBe("openai-compatible-chat")
+    expect(OpenAIResponses.route.id).toBe("openai-responses")
+    expect(OpenAIResponses.webSocketRoute.id).toBe("openai-responses-websocket")
+    expect(AnthropicMessages.route.id).toBe("anthropic-messages")
+  })
+})