feat: complete catalog sensitivity enhancements

backend/test/catalog-tables-routes.test.ts

@@ -103,7 +103,7 @@ test("requires an exact deletion confirmation before applying the atomic diff",
   ]);
 });
 
-test("refuses synchronization until the current binding has passed its connection test", async () => {
+test("starts synchronization without requiring a prior connection test", async () => {
   const { app, repository, database } = await setup();
   await repository.update(database.id, database.version, {
     workspaceId: database.workspaceId,
@@ -117,6 +117,10 @@ test("refuses synchronization until the current binding has passed its connectio
     url: `/catalog/databases/${database.id}/sync-runs`,
     payload: { version: database.version + 1, scope: "tables", tableIds: [] },
   });
-  expect(response.statusCode).toBe(409);
-  expect(response.json()).toMatchObject({ code: "schema_sync_conflict" });
+  expect(response.statusCode).toBe(202);
+  expect(response.json()).toMatchObject({
+    databaseId: database.id,
+    scope: "tables",
+    state: "queued",
+  });
 });