Slack Webhook
Webhook endpoint for the Recoup Content Agent Slack bot. Receives @mention events from Slack and triggers content generation for the mentioned artist. The bot parses the mention text for <artist_account_id> [template] [batch=N] [lipsync], validates the artist, calls POST /api/content/create, and starts a background polling task that reports results back to the Slack thread.
For Slack, also handles url_verification challenges during app setup.
Path Parameters
Chat platform identifier. Currently supports slack.
slack Body
Slack Events API payload (app_mention event or url_verification challenge)
Slack Events API envelope — the shape depends on the event type
Response
Event processed successfully
