Pause suspended Reddit accounts

docs/data-flow.md

@@ -46,6 +46,8 @@ An account is eligible for new outreach only when its runtime is running, both i
 
 Matrix cooldowns retain the operation that triggered them. A room-creation or invitation limit pauses new outreach but does not suppress replies in existing rooms; a limit returned while sending into an existing room pauses those sends as well.
 
+An account-level Matrix `M_FORBIDDEN` is distinct from a room-level 403: it is treated as a definitive suspension signal. The account is durably marked suspended, its runtime is halted, and its historical content remains readable. Independently, every active account periodically reads its own Reddit profile; an explicit suspended profile result takes the same path. Missing profiles, network errors, and rate limits are not suspension evidence and do not pause an account.
+
 The operator can manually clear the unsent funnel from the authenticated dashboard. The repository atomically moves discovered, screening, ready, and retryable candidates to a terminal rejection with the reason `Cleared manually by operator`, releases their leases, and retains the audit rows so those candidates are not rediscovered. A `sending` lease is never changed because its remote Matrix outcome may already be in flight. Clearing does not change bot mode; running discovery may refill the funnel immediately.
 
 The same surface supports individual cancellation and prepared-message editing. Individual cancellation uses the same terminal audit transition and refuses `sending` or completed rows. Editing is limited to `ready` and `retryable` candidates with a preparation snapshot; it atomically replaces only the opener, clears generated strategy/experiment selection metadata, labels the model attribution `operator-edited`, and re-runs the deterministic outbound location/meeting safeguard. Both operations return HTTP 409 when a stale dashboard loses a race to dispatch.