chore: downgrade Prisma to v6.19.3, remove redundant config files, and update schema datasource configurations

admin/package.json

@@ -9,9 +9,9 @@
     "lint": "eslint"
   },
   "dependencies": {
-    "@prisma/adapter-pg": "^7.7.0",
-    "@prisma/client": "^7.7.0",
-    "@prisma/config": "^7.7.0",
+    "@prisma/adapter-pg": "6.19.3",
+    "@prisma/client": "6.19.3",
+    "@prisma/config": "6.19.3",
     "@types/bcryptjs": "^2.4.6",
     "afrohub": "file:..",
     "bcryptjs": "^3.0.3",
@@ -19,7 +19,7 @@
     "lucide-react": "^1.8.0",
     "next": "16.2.3",
     "pg": "^8.20.0",
-    "prisma": "^7.7.0",
+    "prisma": "6.19.3",
     "react": "19.2.4",
     "react-dom": "19.2.4",
     "react-hot-toast": "^2.6.0",

admin/prisma.config.js

@@ -1,14 +0,0 @@
-import { config } from 'dotenv';
-
-// Load .env then override with .env.local for Next.js compatibility
-config();
-config({ path: '.env.local', override: true });
-
-/**
- * Prisma 7 Configuration
- */
-export default {
-  datasource: {
-    url: process.env.DATABASE_URL,
-  },
-};

admin/prisma/schema.prisma

@@ -5,6 +5,7 @@ generator client {
 
 datasource db {
   provider = "postgresql"
+  url      = env("DATABASE_URL")
 }
 
 model User {