feat: complete catalog-driven preprocessing

backend/test/effective-config.test.ts

@@ -41,7 +41,10 @@ function directRendered(): Record<string, unknown> {
       vector: {
         engine: "qdrant",
         base_url: "http://qdrant:6333",
-        collection: "psd-clinical",
+        collections: {
+          reference: "psd-clinical-reference",
+          memory: "psd-clinical-memory",
+        },
         dimensions: 1024,
         distance: "cosine",
         collection_lifecycle: "require_existing",
@@ -103,10 +106,10 @@ function restRendered(): Record<string, unknown> {
 }
 
 const directCanonical =
-  `{"schemaVersion":2,"dwh":{` +
+  `{"schemaVersion":3,"dwh":{` +
   `"engine":"postgres","database":"postgres","schema":"datawarehouse",` +
   `"transport":"postgres_direct","host":"dwh.internal","port":5432,"user":"thoth_reader"},` +
-  `"vector":{"collection":"psd-clinical","dimensions":1024,"distance":"cosine"},` +
+  `"vector":{"collections":{"reference":"psd-clinical-reference","memory":"psd-clinical-memory"},"dimensions":1024,"distance":"cosine"},` +
   `"embedding":{"id":"ollama/qwen3-embedding:0.6b","model":"qwen3-embedding:0.6b","dimensions":1024},` +
   `"roots":{"artifacts":"/data/sessions/psd-clinical/artifacts",` +
   `"indexes":"/data/sessions/psd-clinical/indexes"}}`;
@@ -128,7 +131,7 @@ test("canonical effective config excludes secrets, evidence, session storage, an
   expect(json).not.toContain("sources");
   expect(json).not.toContain("collection_lifecycle");
   expect(json).not.toContain("base_url"); // vector/embedding service URLs are not identity
-  expect(json).not.toContain("memory");
+  expect(json).not.toContain('"memory":"/data');
   expect(json).not.toContain('"sessions"');
 });
 
@@ -190,7 +193,16 @@ test("DWH-affecting changes alter the effective config identity", () => {
   const changedDatabase = { ...base, database: { ...(base.database as object), database: "analytics" } };
   expect(effectiveConfigIdentity("psd-clinical", changedDatabase)).not.toBe(identityBefore);
 
-  const changedCollection = { ...base, resources: { ...base.resources, vector: { ...(base.resources as Record<string, any>).vector, collection: "other" } } };
+  const changedCollection = {
+    ...base,
+    resources: {
+      ...base.resources,
+      vector: {
+        ...(base.resources as Record<string, any>).vector,
+        collections: { reference: "other-reference", memory: "other-memory" },
+      },
+    },
+  };
   expect(effectiveConfigIdentity("psd-clinical", changedCollection)).not.toBe(identityBefore);
 
   const changedEmbeddingIdentity = { ...base, resources: { ...base.resources, embeddings: { ...(base.resources as Record<string, any>).embeddings, model: "other-embedding" } } };