fix(csp): resolve all CSP-related issues and extend webserver health checks

- Added _normalize_codes to support lists of valid HTTP status codes
- Updated web_health_expectations to handle multiple codes, deduplication, and fallback logic
- Extended unit tests with coverage for list/default combinations, invalid values, and alias behavior
- Fixed Flowise CSP flags and whitelist entries
- Adjusted Flowise, MinIO, and Pretix docker service resource limits
- Updated docker-compose templates with explicit service_name
- Corrected MinIO status_codes to 301 redirects

✅ All CSP errors fixed

See details: https://chatgpt.com/share/68d557ad-fc10-800f-b68b-0411d20ea6eb

roles/web-app-pretix/config/main.yml

@@ -11,6 +11,10 @@ docker:
       name:         pretix
       backup:
         no_stop_required: true
+      cpus:               "2.0"
+      mem_reservation:    "1.5g"
+      mem_limit:          "2g"
+      pids_limit:         1024
   volumes:
     data:           "pretix_data"
     config:         "pretix_config"