Make conversation queues mutually exclusive

docs/services.md

@@ -57,8 +57,10 @@ Verification is the safety mechanism that matters most. Posted comments are swep
 | `services/chat/matrix/username-resolver.ts` | Matrix/Reddit identity mapping | Preserve unresolved internal IDs without leaking them in operator text. |
 | `services/chat/matrix/token-refresher.ts` | Explicit refresh-unavailable behavior | New credentials come from verified extension dumps, not token sniffing. |
 | `services/recipient-account-status.ts` | Periodic cached-conversation recipient profile checks | Only definitive Reddit results replace durable state; checks are authentication-bound and must not block the reply loop. |
-| `services/conversation-automation.ts` | Reply-first policy, claims, retries, send-time refresh, handoffs, turn budgets | Snapshot policy; claim before send; supersede stale queued work; reconcile pending claims; fail closed. |
+| `services/conversation-automation.ts` | Reply-first policy, cached-history deterministic risk screening, claims, retries, send-time refresh, handoffs, turn budgets | Snapshot policy; apply the shared risk decision before actionability and send; claim before send; supersede stale queued work; reconcile pending claims; fail closed. |
 | `services/conversation-state.ts` | Pure conversation parsing/state/safety helpers | Conversation text is untrusted data; keep prompt boundaries explicit. |
+| `services/conversation-risk.ts` | Shared deterministic seller, funnel, contact-platform, payment, and scam decision | Live, revalidation, automatic history, and forced-sweep paths must not diverge. |
+| `services/seller-sweep.ts` | Operator-forced deterministic and batched-AI seller screening | Use complete cached inbound text; deterministic off-platform outcomes remain terminal; unchanged clean AI screens use the durable watermark. |
 | `services/conversation-boundaries.ts` | Sequence-aware media requests, refusals, and full-stop detection | Short ambiguous replies become boundaries only in the matching request context. |
 | `services/outbound-message-safety.ts` | Final no-proximity/no-meeting rule | This is defense in depth beyond prompts. |
 | `services/conversation-outcome*.ts` | Response outcome classification/recording | Keep analytics attribution account/message scoped. |