Cache Supabase Queries

[whoabuddy]

We should create a Durable Object for fetching Supabase data and caching it.

It'd be really cool to display stats on crew executions (see aibtcdev/aibtcdev-frontend#120) and while the data can be pulled from the database, we don't want to have every user query the info individually.

The default 15min cache ttl shouldn't need to be modified, updates maybe drop to 1 minute and test.

We can use this to fetch data for the backend or frontend as well!