fix: resolve 21 lint errors from GDPR/logger/caching commits and fix web lint

- Fix import ordering in auth DTOs, admin module, and test files
- Merge duplicate @modules/shared imports (no-duplicates with prefer-inline)
- Remove unused imports (ForceDeleteUserCommand, Inject)
- Use parameterless catch for unused error bindings
- Switch web lint from `next lint` to `eslint` (flat config compatibility)

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

apps/web/package.json

@@ -6,7 +6,7 @@
     "dev": "next dev --port 3000",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint",
+    "lint": "eslint src/ app/ components/ lib/ hooks/ i18n/ --no-error-on-unmatched-pattern",
     "test": "vitest run",
     "typecheck": "tsc --noEmit"
   },