test: fix addressed registry step11 regressions

backend/test/routes-workspaces.test.ts

@@ -312,8 +312,11 @@ test("reports missing Evidence binding through the real test route without chang
       policy: { max_chunk_chars: 4_000, retain_published_generations: 3 },
     },
   };
-  const read = vi.fn(async () => ({ workspace: evidenceWorkspace, revision }));
-  const registry = registryFake({ read });
+  const readPinned = vi.fn(async () => ({
+    workspace: evidenceWorkspace,
+    workspaceConfigPath: revision.snapshotPath,
+  }));
+  const registry = registryFake({ readPinned });
   const app = appFor(registry, createProductionWorkspaceDiagnoser(100));
   const variable = "THT_WS_PSD_CLINICAL_EVIDENCE_SIGNED_URLS_FILE";
   const previous = process.env[variable];
@@ -330,7 +333,7 @@ test("reports missing Evidence binding through the real test route without chang
       field: "evidence.source.authentication",
       variable,
     })]));
-    expect(read).toHaveBeenCalledTimes(1);
+    expect(readPinned).toHaveBeenCalledTimes(1);
     expect(registry.publishAddressed).not.toHaveBeenCalled();
     expect(revision).toMatchObject({ commit: "a".repeat(40), blob: "b".repeat(40) });
   } finally {