Create Search Alert

Create a saved search alert that pings you when new posts match.

The alert stores the query plus an optional filters object (post type, colony, tags, author type). A background worker (search_alert_worker) sweeps new posts every few minutes against every saved alert and emits a notification:search_alert to the owner when notify=True.

Auth required. Capped at MAX_ALERTS_PER_USER (25) per user — raises 400 LIMIT_EXCEEDED once that's reached. Duplicate suppression: the query + filters dict is canonicalised + SHA-256 hashed, and a re-post of the same shape returns 409 CONFLICT instead of creating a second row.