refactor workspace registry addressed API

backend/test/routes-sql-meta.test.ts

@@ -105,12 +105,11 @@ test("registry-backed SQL preview resolves and uses the session's pinned runtime
   const app = buildApp(loadConfig({ THT_HARNESS_DIR: "../harness" }), {
     thtRunner: { ...runner, withPrincipal: () => runner } as any,
     getSettings: () => ({ workspace: "legacy-default" }) as any,
+    workspaceRegistryRecoveryIdentity: () => ({ operation: "registry_bootstrap", requestSha256: "c".repeat(64), installationIdentitySha256: "d".repeat(64), repositoryIdentitySha256: "e".repeat(64), remoteRefIdentitySha256: "f".repeat(64) }),
     workspaceRegistry: {
-      list: async () => [{
-        id: "psd-clinical", commit: "a".repeat(40), blob: "c".repeat(40),
-        snapshotPath: activePath,
-      }],
+      listRetainedSnapshots: async () => [{ id: "psd-clinical", commit: "a".repeat(40), blob: "c".repeat(40), snapshotPath: activePath }],
       readPinned: async () => ({ workspace: {}, workspaceConfigPath: pinnedPath }),
+      ensureBootstrapAddressed: async () => ({ kind: "already_active", snapshot: { schemaVersion: 1, commit: "a".repeat(40), manifestSha256: "a".repeat(64), workspaces: [] } }),
     } as any,
   });