Refactor API integration and data fetching for genre, novel, and chapter pages

- Replace Prisma database calls with API fetches from the reader API in GenreDetailPage, GenresPage, SearchPage, ChapterReaderPage, and NovelDetailPage.
- Introduce new utility functions for API requests in server-api.ts, including error handling.
- Update authentication flow in auth.ts to sync Google login with the reader API.
- Modify NextAuth session and JWT types to include additional user information.
- Clean up unused imports and code related to Prisma and MongoDB connections.
- Adjust the configuration in next.config.mjs to remove unnecessary API routes.

types/next-auth.d.ts

@@ -1,4 +1,5 @@
 import NextAuth from "next-auth"
+import { JWT } from "next-auth/jwt"
 
 declare module "next-auth" {
     interface Session {
@@ -9,9 +10,19 @@ declare module "next-auth" {
             image?: string | null
             role: string
         }
+        accessToken?: string | null
     }
 
     interface User {
         role: string
     }
 }
+
+declare module "next-auth/jwt" {
+    interface JWT {
+        id?: string
+        role?: string
+        accessToken?: string | null
+        picture?: string | null
+    }
+}