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/stats/app/src/app.tsx

@@ -0,0 +1,31 @@
+import { MetaProvider, Meta, Title } from "@solidjs/meta"
+import { Router } from "@solidjs/router"
+import { FileRoutes } from "@solidjs/start/router"
+import { Suspense } from "solid-js"
+import "./app.css"
+
+function AppMeta() {
+  return (
+    <>
+      <Title>OpenCode Data</Title>
+      <Meta name="description" content="OpenCode usage data, market share, token cost, and session cost." />
+    </>
+  )
+}
+
+export default function App() {
+  return (
+    <Router
+      base={import.meta.env.BASE_URL.replace(/\/$/, "")}
+      explicitLinks={true}
+      root={(props) => (
+        <MetaProvider>
+          <AppMeta />
+          <Suspense>{props.children}</Suspense>
+        </MetaProvider>
+      )}
+    >
+      <FileRoutes />
+    </Router>
+  )
+}