feat: P3 effective configuration, memory root, and revision-scoped records

backend/src/workspaces/runtime-renderer.ts

@@ -9,6 +9,7 @@ export interface RuntimePaths {
   sessions: string;
   artifacts: string;
   indexes: string;
+  memory: string;
 }
 
 export interface RuntimeIdentity {
@@ -255,6 +256,7 @@ export function renderRuntimeConfig(
     ...(installation.profile === undefined ? {} : { profile: installation.profile }),
     language: descriptor.workspace.language,
     database,
+    semantic_index: descriptor.semantic_index,
     resources: {
       vector: {
         engine: "qdrant",