feat: unify installation model catalog

backend/src/workspaces/runtime-renderer.ts

@@ -34,6 +34,7 @@ export interface RuntimeInstallationOverlay {
 export interface SemanticRuntimeConfig {
   internalQdrantUrl: string;
   internalEmbeddingUrl: string;
+  internalEmbeddingId?: string;
   internalEmbeddingModel: string;
   internalEmbeddingDimensions: number;
 }
@@ -41,6 +42,7 @@ export interface SemanticRuntimeConfig {
 export const DEFAULT_SEMANTIC_RUNTIME: SemanticRuntimeConfig = {
   internalQdrantUrl: "http://qdrant:6333",
   internalEmbeddingUrl: "http://embedding:11434",
+  internalEmbeddingId: "ollama/qwen3-embedding:0.6b",
   internalEmbeddingModel: "qwen3-embedding:0.6b",
   internalEmbeddingDimensions: 1024,
 };
@@ -202,16 +204,16 @@ function placeholderConnection(identity: { database: string; schema: string }):
 
 function requireSupportedDescriptor(workspace: unknown): void {
   if (typeof workspace !== "object" || workspace === null) {
-    throw new Error("Runtime renderer supports only workspace schema version 3");
+    throw new Error("Runtime renderer supports only workspace schema version 4");
   }
   const metadata = Reflect.get(workspace, "workspace");
   if (typeof metadata !== "object" || metadata === null
-    || Reflect.get(metadata, "schema_version") !== 3) {
-    throw new Error("Runtime renderer supports only workspace schema version 3");
+    || Reflect.get(metadata, "schema_version") !== 4) {
+    throw new Error("Runtime renderer supports only workspace schema version 4");
   }
 }
 
-/** Render the schema-v3 compatibility fields consumed by the current Python harness. */
+/** Render the schema-v4 compatibility fields consumed by the current Python harness. */
 export function renderRuntimeConfig(
   workspace: WorkspaceDescriptor,
   bindings: RuntimeBindings,
@@ -263,12 +265,24 @@ export function renderRuntimeConfig(
     ...(installation.profile === undefined ? {} : { profile: installation.profile }),
     language: descriptor.workspace.language,
     database,
-    semantic_index: descriptor.semantic_index,
+    semantic_index: {
+      vector_store: {
+        engine: "qdrant",
+        collection: descriptor.workspace.id,
+        dimensions: semanticRuntime.internalEmbeddingDimensions,
+        distance: "cosine",
+      },
+      embedding: {
+        provider: "ollama_internal",
+        model: semanticRuntime.internalEmbeddingModel,
+        dimensions: semanticRuntime.internalEmbeddingDimensions,
+      },
+    },
     resources: {
       vector: {
         engine: "qdrant",
         base_url: semanticRuntime.internalQdrantUrl,
-        collection: descriptor.semantic_index.vector_store.collection,
+        collection: descriptor.workspace.id,
       },
       embeddings: {
         provider: "ollama_internal",