Crate monitor agent crashes on startup

The new v0.5.4 crate monitor agent is crashing on startup on satp3 with:

2025-06-12T14:41:26+0000 startup-op: launching init_crate
2025-06-12T14:41:26+0000 start called for init_crate
2025-06-12T14:41:26+0000 init_crate:0 Status is now "starting".
2025-06-12T14:41:26+0000 init_crate:0 Status is now "running".
2025-06-12T14:41:26+0000 root@shm-crt2-satp3
2025-06-12T14:41:26+0000 command run: ['ssh', 'root@shm-crt2-satp3', 'pwd']
2025-06-12T14:41:26+0000 init_crate:0 CRASH: [Failure instance: Traceback: <class 'IndexError'>: list index out of range
/opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:269:inContext
/opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:285:<lambda>
/opt/venv/lib/python3.10/site-packages/twisted/python/context.py:117:callWithContext
/opt/venv/lib/python3.10/site-packages/twisted/python/context.py:82:callWithContext
/opt/venv/lib/python3.10/site-packages/ocs/ocs_agent.py:984:_running_wrapper
/opt/venv/lib/python3.10/site-packages/socs/agents/smurf_crate_monitor/agent.py:222:init_crate
]
2025-06-12T14:41:26+0000 init_crate:0 Status is now "done".

v0.5.0-5-g6688b61-dev is the version it was previously running, which would result in:

2025-06-12T14:39:19+0000 startup-op: launching init_crate
2025-06-12T14:39:19+0000 start called for init_crate
2025-06-12T14:39:19+0000 init_crate:0 Status is now "starting".
2025-06-12T14:39:19+0000 init_crate:0 Status is now "running".
2025-06-12T14:39:19+0000 root@shm-crt2-satp3
2025-06-12T14:39:19+0000 command run: ['ssh', 'root@shm-crt2-satp3', 'pwd']
2025-06-12T14:39:20+0000 /etc/home/root

2025-06-12T14:39:20+0000 Successfully ssh-d into shelf
2025-06-12T14:39:20+0000 start called for acq
2025-06-12T14:39:20+0000 acq:1 Status is now "starting".
2025-06-12T14:39:20+0000 acq:1 Status is now "running".
2025-06-12T14:39:20+0000 init_crate:0 Crate Initialized
2025-06-12T14:39:20+0000 init_crate:0 Status is now "done".
2025-06-12T14:39:20+0000 Started acquisition
2025-06-12T14:39:22+0000 Got sensor names

It seems like the ssh connection isn't going through.

Start in socs/agents/smurf_crate_monitor/agent.py at init_crate, around line 222, and compare the v0.5.4 behavior with v0.5.0-5-g6688b61-dev. Reproduce startup on satp3 and inspect the SSH command and returned output. Done means the agent completes crate initialization and starts acquisition without the IndexError.