Catchlist_todo

Now that we have all the main database entities we want and they're pretty much in the right place, it's time to solidify expectations through documentation. Documentation will clarify what we expect, make LLM coding easier, make testing easier, and help shake out any unknown features that need to be built.

Things to document:

• database entities
• API routes
  • per-entity
• API infrastructure
  • api route registration
  • startup process
• database infrastructure
  • startup process
  • model/repo/service pattern