feat(registry): add workspace-scoped artifact metadata

apps/admin-api/src/error.rs

@@ -588,6 +588,36 @@ impl From<RegistryError> for ApiError {
                 format!("import job {job_id} was already applied with different parameters"),
                 json!({ "job_id": job_id }),
             ),
+            RegistryError::SourceNotFound { source_id } => Self::not_found_with_context(
+                "artifact source was not found",
+                json!({
+                    "source_id": source_id,
+                    "error_code": "artifact_source_not_found"
+                }),
+            ),
+            RegistryError::SourceConflict { source_id } => Self::conflict_with_context(
+                "artifact source metadata or lifecycle conflicts with the request",
+                json!({
+                    "source_id": source_id,
+                    "error_code": "artifact_source_conflict",
+                    "recovery": "reload"
+                }),
+            ),
+            RegistryError::SourceUnavailable => Self::unprocessable_with_context(
+                "artifact source is unavailable",
+                json!({ "error_code": "artifact_source_unavailable" }),
+            ),
+            RegistryError::SourceIntegrity => Self::unprocessable_with_context(
+                "artifact source failed integrity verification",
+                json!({ "error_code": "artifact_source_integrity" }),
+            ),
+            RegistryError::InvalidArtifactSource { field } => Self::validation_with_context(
+                "artifact source metadata is invalid",
+                json!({
+                    "field": field,
+                    "error_code": "artifact_source_invalid"
+                }),
+            ),
             RegistryError::Storage(_) => Self::internal("registry operation failed"),
             RegistryError::Migration(_)
             | RegistryError::Serialization(_)