feat: complete catalog-driven preprocessing

scripts/fixtures/workspace-registry-windows.yaml

@@ -4,17 +4,8 @@ workspace:
   name: Task 13 Windows
   language: en
 
-dwh:
-  engine: postgres
-  database: warehouse
-  schema: public
-  port: 5432
-  timeout_ms: 5000
-  supported_transports:
-    - postgres_direct
-    - rest_api
-
 evidence:
+  schema_version: 1
   source:
     type: filesystem
     uri: task13-windows/evidence
@@ -24,12 +15,3 @@ evidence:
   policy:
     max_chunk_chars: 4000
     retain_published_generations: 3
-
-diagnostics:
-  dwh_rest:
-    method: GET
-    path: /health
-    auth: none
-    response:
-      database: database
-      schema: schema