[BUG][P0] Wrong relative imports block module resolution in API routes

[l0gic]

Describe the bug

Several API route files use incorrect relative imports (../../../../../lib/auth) instead of the project's @/lib/auth alias, causing module resolution failures.

To Reproduce

1. Run pnpm run dev or pnpm run build
2. Observe module resolution errors for:
   • src/app/api/analytics/activity/route.ts
   • src/app/api/analytics/user-stats/route.ts
   • src/app/api/test/feature-584-audit-immutability/route.ts
   • src/app/api/privacy/delete/route.ts
   • src/app/api/admin/audit-logs/route.ts

Expected behavior

All imports should use the @/ alias consistently for proper module resolution.

Possible Solution

Replace all relative imports like ../../../../../lib/auth with @/lib/auth.

Files Affected

• src/app/api/analytics/activity/route.ts:4
• src/app/api/analytics/user-stats/route.ts:4
• src/app/api/test/feature-584-audit-immutability/route.ts:12
• src/app/api/privacy/delete/route.ts:5
• src/app/api/admin/audit-logs/route.ts:21

Discovered By

Automated build error analysis during dev server startup.