refactor: retire external vector deployment

scripts/test-task13-runtime-fixtures.sh

@@ -43,7 +43,7 @@ mkdir -p "$TASK13_REMOTE"
 workspace="$fixture/task13-smoke.yaml"
 cat >"$workspace" <<'EOF'
 workspace:
-  schema_version: 2
+  schema_version: 3
   id: task13-smoke
   name: Task 13 Smoke
   language: en
@@ -54,17 +54,14 @@ dwh:
   supported_transports: [postgres_direct]
 semantic_index:
   vector_store:
-    engine: pgvector
-    database: vectors
-    schema: public
-    collection: task13_documents
-    dimensions: 8
+    engine: qdrant
+    collection: task13-smoke
+    dimensions: 1024
     distance: cosine
-    supported_transports: [pgvector_direct]
   embedding:
-    provider: ollama_compatible
-    model: task13-embedding
-    dimensions: 8
+    provider: ollama_internal
+    model: qwen3-embedding:0.6b
+    dimensions: 1024
 llm_policy:
   default: local-qwen/task13-smoke
   allowed: [local-qwen/task13-smoke]