BUG-F (P1): Fake webhook lookupInbox used JSONB @> operator on a TEXT
column, causing all fake webhooks to return "ignored". Cast
channel_config::jsonb before the @> operator.
BUG-G (P3): Vue Router history.state warning on Activity page. Four
call sites replaced history.state with null/{}, destroying Vue Router's
internal navigation state. Now all replaceState calls preserve
window.history.state.
BUG-H (P3): Inbox list showed stale data because cache_keys endpoint
returned hardcoded "0000000000" for inbox/label/team, so the frontend
IndexedDB cache never invalidated. Cache keys are now derived from
actual DB state (row count + MAX(updated_at)), with defensive fallback
for missing tables.
BUG-I (P3): All worker goroutines shared the same Redis consumer name,
so XINFO CONSUMERS showed 1 consumer instead of N. Each goroutine now
generates a unique consumer ID (workerID-index).