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

infra/enterprise.ts

@@ -0,0 +1,17 @@
+import { SECRET } from "./secret"
+import { shortDomain } from "./stage"
+
+const storage = new sst.cloudflare.Bucket("EnterpriseStorage")
+
+new sst.cloudflare.x.SolidStart("Teams", {
+  domain: shortDomain,
+  path: "packages/enterprise",
+  buildCommand: "bun run build:cloudflare",
+  environment: {
+    OPENCODE_STORAGE_ADAPTER: "r2",
+    OPENCODE_STORAGE_ACCOUNT_ID: sst.cloudflare.DEFAULT_ACCOUNT_ID,
+    OPENCODE_STORAGE_ACCESS_KEY_ID: SECRET.R2AccessKey.value,
+    OPENCODE_STORAGE_SECRET_ACCESS_KEY: SECRET.R2SecretKey.value,
+    OPENCODE_STORAGE_BUCKET: storage.name,
+  },
+})