Merge master into the preserved catalog integration candidate

Preserve the frozen catalog and its historical qualification separately. Keep current supervisor ownership, installed-artifact and recovery controls, the shipped TestOps cell, and the historical OpenCode candidate's exact model. Production source matches master f2db909393. Focused support checks: 218 passed; full catalog typecheck passed.

tests/runner-e2e/api.test.ts

@@ -103,3 +103,13 @@ it.each([
   await expect(new RunnerApi({} as APIRequestContext).getRunObservation(endpoint)).rejects.toThrow("allowlisted same-origin GET");
   expect(fetcher).not.toHaveBeenCalled();
 });
+
+it.each([200, 204, 404, 409])("forwards the cleanup request timeout and preserves DELETE status %s", async status => {
+  vi.stubEnv("PAPERCLIP_RUNNER_E2E_PORT", "3100");
+  const remove = vi.fn(async () => response(status));
+  const api = new RunnerApi({ delete: remove } as unknown as APIRequestContext);
+  const result = api.delete("/api/environments/environment", { allowNotFound: true, timeout: 500 });
+  if (status === 409) await expect(result).rejects.toThrow("409");
+  else await expect(result).resolves.toBeUndefined();
+  expect(remove).toHaveBeenCalledExactlyOnceWith("/api/environments/environment", { timeout: 500 });
+});