feat: StudioNotebookDetailPage 添加「我的笔记」跳转

- 聊天视图顶栏和列表视图右上角均新增「我的笔记」链接
- 点击跳转目标系统 callback 页面并携带 token 和 redirect 参数
- 来源弹窗仅保留「上传文件」和「复制的文字」两个选项
- VITE_AIPI_BACKENP_URL 用于 Studio API 调用，VITE_AIPI_FRONTEND_URL 用于页面跳转
- useStudioNotebooks 新增 token 返回值供页面直接使用

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend-web/src/env.ts

@@ -6,7 +6,8 @@ function readEnv(
     | "VITE_LANGGRAPH_BASE_URL"
     | "VITE_CANVAS_LANGGRAPH_BASE_URL"
     | "VITE_NOTE_API_BASE_URL"
-    | "VITE_NOTEBOOK_API_BASE_URL"
+    | "VITE_AIPI_BACKENP_URL"
+    | "VITE_AIPI_FRONTEND_URL"
     | "VITE_STATIC_WEBSITE_ONLY"
     | "VITE_GITHUB_OAUTH_TOKEN"
     | "VITE_STUDIO_ENABLED",
@@ -22,7 +23,7 @@ export const env = {
   // routed (e.g. a separate canvas-agent server). Falls back to the main URL.
   NEXT_PUBLIC_CANVAS_LANGGRAPH_BASE_URL: readEnv("VITE_CANVAS_LANGGRAPH_BASE_URL"),
   NEXT_PUBLIC_NOTE_API_BASE_URL: readEnv("VITE_NOTE_API_BASE_URL"),
-  NEXT_PUBLIC_NOTEBOOK_API_BASE_URL: readEnv("VITE_NOTEBOOK_API_BASE_URL"),
+  NEXT_PUBLIC_NOTEBOOK_API_BASE_URL: readEnv("VITE_AIPI_BACKENP_URL"),
   NEXT_PUBLIC_STATIC_WEBSITE_ONLY: readEnv("VITE_STATIC_WEBSITE_ONLY"),
   GITHUB_OAUTH_TOKEN: readEnv("VITE_GITHUB_OAUTH_TOKEN"),
   STUDIO_ENABLED: readEnv("VITE_STUDIO_ENABLED"),