Make conversation queues mutually exclusive

tests/conversation-automation.test.ts

@@ -223,6 +223,32 @@ describe('conversation automation', () => {
     });
   });
 
+  it('kills instead of resuming a queued reply when an off-platform push arrives', async () => {
+    const observed = incoming(1, 'how is your week going?');
+    const latest: ActiveChat = {
+      ...observed,
+      lastMessageTime: 40,
+      lastMessageSnippet: 'add me on telegram instead',
+      messages: [
+        ...observed.messages!,
+        { eventId: 'telegram-event', sender: 'alice', text: 'add me on telegram instead', timestamp: 40, isSelf: false },
+      ],
+    };
+    const fixture = harness([], [], 0, undefined, async () => latest);
+    fixture.claims.getClaim.mockReturnValue({
+      conversationId: 'room-alice', incomingKey: 'in-1', status: 'pending',
+      replyText: 'Mine has been good, thanks.', incomingAt: 3,
+      claimedAt: 0, lastAttemptAt: null, attemptCount: 0, sentAt: null, supersededAt: null,
+    } as never);
+
+    const result = await fixture.service.processConversation(observed);
+
+    expect(result?.kind).toBe('killed');
+    expect(fixture.claims.markSuperseded).toHaveBeenCalledWith('room-alice', 'in-1');
+    expect(fixture.chat.sendChatMessage).not.toHaveBeenCalled();
+    expect(fixture.getSaved()).toMatchObject({ sellerDetected: true, automation: { status: 'killed' } });
+  });
+
   it('kills a conversation that pushes a seller funnel', async () => {
     const { service, chat, ai, triage, getSaved } = harness(['onlyfans'], ['fansly.com']);
     const result = await service.processConversation(incoming(1, 'My Fansly is https://www.fansly.com/example'));
@@ -619,6 +645,21 @@ describe('conversation automation', () => {
     expect(chat.sendChatMessage).not.toHaveBeenCalled();
   });
 
+  it('automatically ends a historical read conversation with an off-platform push', async () => {
+    const { service, chat, triage, getSaved } = harness();
+    chat.getCachedConversations.mockResolvedValue([{
+      ...incoming(1, 'add me on telegram, I barely use reddit'),
+      unread: false,
+    }]);
+
+    const results = await service.processPendingConversations();
+
+    expect(results).toEqual([expect.objectContaining({ kind: 'killed', conversationId: 'room-alice' })]);
+    expect(getSaved()).toMatchObject({ sellerDetected: true, automation: { status: 'killed' } });
+    expect(triage.setStatus).toHaveBeenCalledWith('room-alice', 'done', null, 1_000);
+    expect(chat.sendChatMessage).not.toHaveBeenCalled();
+  });
+
   it('retries the same durable reply after an interrupted send', async () => {
     const { service, chat, ai, claims } = harness();
     chat.sendChatMessage.mockRejectedValueOnce(new Error('interrupted'));