crash in car daemon results in confusing error

[jyoung8607]

Describe the bug

While developing the Alfa Romeo port, I made an error which resulted in card crashing on startup.

Before card was introduced, when controlsd would crash at startup, you would see "waiting for controls to start". For any other service crash, there would be a Process Not Running alert.

With controlsd and card separated, when there is a crash in car port code, it's now manifesting as "CAN error: check connections". This resulted in quite a lot of confusion and time spent troubleshooting by both myself and the Alfa Romeo owner.

It is desired that a card crash show a Process Not Running or similar more clear alert.

Provide a route where the issue occurs

12b6b35de7477fcc/00000003--1af65ad310

openpilot version

this week's master + a car port

Additional info

No response