♻️ refactor: Refactor API endpoints to use dynamic API prefix from environment variables

- Updated all service files to replace hardcoded API paths with `${import.meta.env.VITE_API_PREFIX}` for better configurability.
- Ensured consistency across user, common, and gateway services by applying the new API prefix format.
- Removed unnecessary comments and maintained ESLint disable directives where applicable.

packages/ui/openapi2ts.config.ts

@@ -1,7 +1,7 @@
 const baseConfig = {
   requestLibPath: "import request from '@workspace/ui/lib/request';",
   serversPath: "./src/services",
-  apiPrefix: "'/api'",
+  apiPrefix: "import.meta.env.VITE_API_PREFIX",
 };
 
 const config = [