Remove retarded build time variables

backend/app/core/config.py

@@ -53,6 +53,14 @@ class Settings(BaseSettings):
     otel_collector_endpoint: str = "http://localhost:4318"
     otel_export_timeout_ms: int = 10000
 
+    # Browser-reachable OTLP endpoint — served to the SPA via GET /api/config.
+    # Distinct from otel_collector_endpoint, which is the backend's own
+    # in-cluster collector address.
+    frontend_otel_collector_endpoint: str = "/otel"
+    frontend_otel_service_name: str = "otel-bi-frontend"
+    frontend_otel_service_namespace: str = "final-thesis"
+    frontend_deployment_environment: str = "production"
+
     # Report output — points at the K8s CSI / SMB mountpoint in production
     report_output_dir: str = "/tmp/otel-bi-reports"