chore: 添加保存调试日志、修复 time-tracking 类型、简化首页

api/core/files/routes.ts

@@ -239,9 +239,18 @@ router.post(
   validateBody(saveFileSchema),
   asyncHandler(async (req: Request, res: Response) => {
     const { path: relPath, content } = req.body
+    console.log('[save] relPath:', relPath)
+    console.log('[save] content length:', content?.length)
+    console.log('[save] content preview:', content?.slice(0, 100))
     const { fullPath } = resolveNotebookPath(relPath)
+    console.log('[save] fullPath:', fullPath)
     await fs.mkdir(path.dirname(fullPath), { recursive: true })
+    console.log('[save] before writeFile')
     await fs.writeFile(fullPath, content, 'utf-8')
+    console.log('[save] after writeFile, checking file...')
+    const writtenContent = await fs.readFile(fullPath, 'utf-8')
+    console.log('[save] written content length:', writtenContent?.length)
+    console.log('[save] written content preview:', writtenContent?.slice(0, 100))
 
     successResponse(res, null)
   }),