Fix Square txn alerts, finalize discord automation

Adds EduLeads discord role & neon custom field
Some extra documentation on server deployment
Fix Square catalog scraping for subscription plan variations - this caused Square sales tax calculation to break
Add testing to ensure discord role automation does not spam channels
Don't send comms about skipped airtable operations when --no-apply_records is set in update_role_intents invocation
Simplify svelte URL base parsing in api.ts - instead of mangling the URL, instead use a proxy when running svelte with npm run dev.
Refactor yaml dumping code (duplicated across many commands) into decorator.py to appease linting

protohaven / protohaven_api