alice writes 4 memories
settle 6s for pre-gc replication
alice forgets 2 via /api/v1/forget
  forget returned HTTP 400
settle 5s for forget propagation
bob triggers /api/v1/gc on node-2
  gc returned HTTP 200
settle 8s for post-gc settle
verify remaining 2 markers are still readable on every peer
  node-1 sees 2/2 live markers
  node-2 sees 2/2 live markers
Traceback (most recent call last):
  File "/home/runner/work/ai-memory-ai2ai-gate/ai-memory-ai2ai-gate/scripts/scenarios/31_gc_quiescence.py", line 86, in <module>
    main()
  File "/home/runner/work/ai-memory-ai2ai-gate/ai-memory-ai2ai-gate/scripts/scenarios/31_gc_quiescence.py", line 63, in main
    hits += 1 if h.count_matching(ip, ns, content_contains=marker, limit=20) >= 1 else 0
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/ai-memory-ai2ai-gate/ai-memory-ai2ai-gate/scripts/a2a_harness.py", line 209, in count_matching
    rc, resp = self.list_memories(node_ip, namespace, limit=limit)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/ai-memory-ai2ai-gate/ai-memory-ai2ai-gate/scripts/a2a_harness.py", line 186, in list_memories
    return self.http_on(node_ip, "GET", f"/api/v1/memories?{q}")
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/ai-memory-ai2ai-gate/ai-memory-ai2ai-gate/scripts/a2a_harness.py", line 136, in http_on
    result = self.ssh_exec(node_ip, remote_cmd, timeout=timeout)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/ai-memory-ai2ai-gate/ai-memory-ai2ai-gate/scripts/a2a_harness.py", line 78, in ssh_exec
    return subprocess.run(
           ^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/subprocess.py", line 550, in run
    stdout, stderr = process.communicate(input, timeout=timeout)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/subprocess.py", line 1209, in communicate
    stdout, stderr = self._communicate(input, endtime, timeout)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/subprocess.py", line 2116, in _communicate
    self._check_timeout(endtime, orig_timeout, stdout, stderr)
  File "/usr/lib/python3.12/subprocess.py", line 1253, in _check_timeout
    raise TimeoutExpired(
subprocess.TimeoutExpired: Command '['ssh', '-o', 'StrictHostKeyChecking=no', '-o', 'ConnectTimeout=10', '-o', 'ServerAliveInterval=5', 'root@167.99.59.68', "curl -sS -X GET 'http://127.0.0.1:9077/api/v1/memories?namespace=scenario31-gc&limit=20' -H 'Content-Type: application/json'"]' timed out after 30 seconds