feat: enhance error handling and configuration in backend

- Added ORCID_REDIRECT_URI to docker-compose for OAuth callback.
- Refactored CORS and trusted hosts settings in configuration for better clarity.
- Introduced a new function to validate publication IDs and provide explicit error messages for researcher IDs.
- Updated rate limiting strategy to simplify configuration.
- Improved security headers middleware to safely remove sensitive headers.

docker-compose.yml

@@ -11,6 +11,7 @@ services:
     environment:
       DATABASE_URL: postgresql://postgres:postgres@db:5432/orcid_db
       REDIS_URL: redis://redis:6379/0
+      ORCID_REDIRECT_URI: https://jargon-supreme-palpable.ngrok-free.dev/callback
     depends_on:
       db:
         condition: service_healthy