feat: parameterize list_sessions with archived filter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/hqt/sessions/service.py

@@ -881,7 +881,7 @@ class SessionService:
         return {prompt.session_id: prompt for prompt in prompts}
 
     async def list_sessions(
-        self, project_id: int, now: float | None = None
+        self, project_id: int, archived: bool = False, now: float | None = None
     ) -> list[SessionInfo]:
         if now is None:
             now = time.time()
@@ -889,7 +889,7 @@ class SessionService:
             sessions = (
                 db.query(Session)
                 .options(selectinload(Session.harness))
-                .filter_by(project_id=project_id, archived=False)
+                .filter_by(project_id=project_id, archived=archived)
                 .all()
             )
             names = [s.tmux_session_name for s in sessions]

tests/test_sessions.py

@@ -2150,3 +2150,23 @@ async def test_stop_session_for_window_kills_by_name(service, db, tmux):
 async def test_stop_session_for_window_unknown_window_raises(service):
     with pytest.raises(ServiceError):
         await service.stop_session_for_window("not-an-hqt-window")
+
+
+@pytest.mark.asyncio
+async def test_list_sessions_archived_filter(service, db, tmux):
+    h = db.query(Harness).filter_by(name="claude-code").first()
+    active = Session(
+        project_id=1, harness_id=h.id, tmux_session_name="hqt-active", archived=False
+    )
+    arch = Session(
+        project_id=1, harness_id=h.id, tmux_session_name="hqt-arch", archived=True
+    )
+    db.add_all([active, arch])
+    db.commit()
+    active_id, arch_id = active.id, arch.id
+
+    default = await service.list_sessions(project_id=1)
+    assert [i.session.id for i in default] == [active_id]
+
+    archived = await service.list_sessions(project_id=1, archived=True)
+    assert [i.session.id for i in archived] == [arch_id]