feat: optimize interface and database connection

Adjust MongoDB mock connector and update database structure.
Enhance sidebar, data platform, and AI analysis tools.
Clean up unnecessary code and update development docs.

#VERCEL_SKIP

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

app/layout.tsx

@@ -6,8 +6,8 @@ import ClientLayout from "./ClientLayout"
 const inter = Inter({ subsets: ["latin"] })
 
 export const metadata: Metadata = {
-  title: "Create Next App",
-  description: "Generated by create next app",
+  title: "卡若数据资产中台",
+  description: "基于IMEI、手机号的用户数据资产管理平台",
     generator: 'v0.dev'
 }