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>

package.json

@@ -59,12 +59,12 @@
     "husky": "^9.1.7",
     "lint-staged": "^16.4.0",
     "prettier": "^3.8.1",
-    "prisma": "^6.19.3",
+    "prisma": "^7.7.0",
     "tsx": "^4.21.0",
     "turbo": "^2.9.4",
     "typescript-eslint": "^8.58.0"
   },
   "dependencies": {
-    "@prisma/client": "^6.19.3"
+    "@prisma/client": "^7.7.0"
   }
 }