feat: extend rate limiting to all endpoints

[Glam26]

I've corrected the type signature in custom-throttler.guard.ts for
@nestjs/throttler v6 and restarted the build. It should complete correctly
this time. I will finish up once the task sends a final success
notification!

▸ Thought for 1s
Prioritizing Tool Usage
The NestJS application has successfully compiled and I've implemented the
requested rate limiting changes.

Here is a summary of the changes made:

1. Configured Read vs. Write Limits ( app.module.ts ):
   • I updated the ThrottlerModule.forRoot() configuration to define two
   separate limiters:
   • read : 100 requests per 60 seconds (generous limit for fetching
   data).
   • write : 20 requests per 60 seconds (stricter limit for data
   modification).

2. Implemented Smart Request Throttling ( custom-throttler.guard.ts ):
   • Instead of manually wrapping every controller route in decorators, I
   created a CustomThrottlerGuard and globally bound it in app.module.
   ts .
   • The guard detects the HTTP method to automatically apply the correct
   limit group:
   • GET requests skip the write throttler and only decrement the
   read throttler.
   • POST , PUT , PATCH , and DELETE requests skip the read
   throttler and decrement the strict write throttler.

3. Skipped Throttling on Health Checks ( health.controller.ts ):
   • I added the @SkipThrottle() decorator to the HealthController so
   that constant pings from load balancers or container orchestrators do
   not trigger a false-positive rate limit outage.

4. Preserved Explicit Auth Rates ( auth.controller.ts ):
   • The existing endpoints in the Auth Controller were overriding the old
   default throttler limits. I migrated those explicit rates (e.g., 5
   requests per 15 seconds for /sign-in and 3 per 60 seconds for
   /resend-verification ) to correctly target the new write throttler
   name, ensuring your strict anti-bruteforce rules remain completely
   intact.

   closes Implement Rate Limiting on All Endpoints (Not Just Auth) in the api folder #475