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/tsconfig.json

@@ -3,6 +3,7 @@
   "compilerOptions": {
     "module": "CommonJS",
     "moduleResolution": "Node",
+    "ignoreDeprecations": "6.0",
     "outDir": "./dist",
     "rootDir": "./src",
     "emitDecoratorMetadata": true,