how to use assert()?

[celery6]

good point by Armaan (https://waterloorocketry.slack.com/archives/C05EUQLFP4J/p1729102668813389)

We need to investigate this more:

• before we lead ourselves into hole, research how similar existing projects use assert(), esp in safety-critical contexts
• implement custom assertion for processor board (this step is blocked until this repo has actual code...)
• determine what our assert should do in development deployment, vs in production (ie flight) deployoment. In flight it should set canards to 0 or kill power if thats too hard? How to send 0 msg in an assertion though

[celery6]

During flight, assert failures should jump to the lastditch CAN failure thing, #67 . not sure which CAN msg to use for this yet...

During development, assert failures should ... print to uart4 (stlink serial line) via hal_uart_transmit? maybe?

[celery6]

will come back to this after comp...