feat: unify installation model catalog

backend/test/workspace-runtime-config-lease.test.ts

@@ -66,7 +66,7 @@ workspaces: [{id: psd-clinical, name: Runtime Lease}]
 `);
   mkdirSync(join(source, "psd-clinical", "evidence"), { recursive: true });
   writeFileSync(join(source, "psd-clinical", "workspace.yaml"), `workspace:
-  schema_version: 3
+  schema_version: 4
   id: psd-clinical
   name: Runtime Lease
   language: en
@@ -75,18 +75,6 @@ dwh:
   database: analytics
   schema: mart
   supported_transports: [postgres_direct]
-semantic_index:
-  vector_store:
-    engine: qdrant
-    collection: psd-clinical
-    dimensions: 1024
-    distance: cosine
-  embedding:
-    provider: ollama_internal
-    model: qwen3-embedding:0.6b
-    dimensions: 1024
-llm_policy:
-  allowed: [zai/glm-5.2]
 evidence:
   source:
     type: filesystem