Integrate released catalog sources with effective configuration

internal/configuration/load.go

@@ -104,6 +104,11 @@ var envName = regexp.MustCompile(`^[A-Za-z_][A-Za-z0-9_]*$`)
 var backendFields = []string{"endpoint", "api_key_env", "concurrency_limit", "queue_capacity", "extra_params"}
 var profileFields = []string{"backend", "endpoint", "model", "temperature", "top_p", "max_tokens", "timeout_seconds", "service_tier", "reasoning_effort", "api_key_env", "api_key_required", "extra_params"}
 
+// Load captures one immutable effective configuration for internal consumers.
+func Load(main configkit.Input, underlays []configkit.Underlay) (*loaded, error) {
+	return load(main, underlays)
+}
+
 // load performs one ConfigKit lifecycle over the selected source tiers. Engine
 // assembly is intentionally not connected to this adapter yet.
 func load(main configkit.Input, underlays []configkit.Underlay) (*loaded, error) {