feat: upgrade major dependencies to latest versions

- Prisma 6.19 → 7.7 (driver adapter pattern, prisma.config.ts)
- TypeScript 5.9 → 6.0 (ignoreDeprecations, CSS type declarations)
- Vitest 3.2 → 4.1
- Pino 9.14 → 10.3
- @types/node 22.x → 25.x

All 307 tests pass, typecheck clean, build succeeds.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/shared/infrastructure/prisma.service.ts

@@ -1,13 +1,25 @@
 import { Injectable, type OnModuleInit, type OnModuleDestroy } from '@nestjs/common';
+import { PrismaPg } from '@prisma/adapter-pg';
 import { PrismaClient } from '@prisma/client';
+import pg from 'pg';
 
 @Injectable()
 export class PrismaService extends PrismaClient implements OnModuleInit, OnModuleDestroy {
+  private pool: pg.Pool;
+
+  constructor() {
+    const pool = new pg.Pool({ connectionString: process.env['DATABASE_URL'] });
+    const adapter = new PrismaPg(pool);
+    super({ adapter });
+    this.pool = pool;
+  }
+
   async onModuleInit(): Promise<void> {
     await this.$connect();
   }
 
   async onModuleDestroy(): Promise<void> {
     await this.$disconnect();
+    await this.pool.end();
   }
 }