fix: use resolve_scoped_name for provider lookup in inference set

The provider lookup in upsert_cluster_inference_route used
get_message_by_name directly, which fails for per-user providers
stored under scoped keys (e.g. 'owner-uuid/claude'). Switch to
resolve_scoped_name which tries the scoped key first then falls
back to global, matching the pattern used in the provider gRPC
service.

Signed-off-by: Paolo Dettori <dettori@us.ibm.com>

Author: pdettori

crates/openshell-server/src/inference.rs

@@ -297,13 +297,19 @@ async fn upsert_cluster_inference_route(
         return Err(Status::invalid_argument("model_id is required"));
     }
 
-    let provider = store
-        .get_message_by_name::<Provider>(provider_name)
-        .await
-        .map_err(|e| Status::internal(format!("fetch provider failed: {e}")))?
-        .ok_or_else(|| {
-            Status::failed_precondition(format!("provider '{provider_name}' not found"))
-        })?;
+    let provider_record = crate::auth::ownership::resolve_scoped_name(
+        store,
+        Provider::object_type(),
+        provider_name,
+        principal,
+        admin_role,
+    )
+    .await?
+    .ok_or_else(|| {
+        Status::failed_precondition(format!("provider '{provider_name}' not found"))
+    })?;
+    let provider = Provider::decode(provider_record.payload.as_slice())
+        .map_err(|e| Status::internal(format!("decode provider failed: {e}")))?;
 
     let empty = std::collections::HashMap::new();
     let provider_labels = provider.metadata.as_ref().map_or(&empty, |m| &m.labels);