refactor: remove legacy workspace runtime branches

backend/test/workspaces-schema.test.ts

@@ -548,39 +548,3 @@ test.each([
     type: "filesystem", uri: "workspace-content/psd-clinical/evidence",
   }, { ...explicitPolicy, [field]: value }), new RegExp(field, "i"));
 });
-
-test("rejects evidence on strict schema v1 and v2 descriptors", () => {
-  for (const schemaVersion of [1, 2]) {
-    const yaml = validYaml
-      .replace("schema_version: 3", `schema_version: ${schemaVersion}`)
-      .replace(`semantic_index:
-  vector_store:
-    engine: qdrant
-    collection: psd-clinical
-    dimensions: 1024
-    distance: cosine
-  embedding:
-    provider: ollama_internal
-    model: qwen3-embedding:0.6b
-    dimensions: 1024`, `semantic_index:
-  vector_store:
-    engine: pgvector
-    database: postgres
-    schema: vectors
-    collection: documents
-    dimensions: 1024
-    distance: cosine
-    supported_transports:
-      - pgvector_direct
-  embedding:
-    provider: ollama_compatible
-    model: evidence-test
-    dimensions: 1024`)
-      + `evidence:
-  source:
-    type: filesystem
-    uri: workspace-content/psd-clinical/evidence
-`;
-    expect(() => parseWorkspaceYaml(yaml)).toThrow(/evidence|unrecognized/i);
-  }
-});