fix(sessions): hermes sessions adopt offers login-stamped phone chats

adoptable_sessions validated each row with no subject, so a phone chat stamped
with the dashboard login (basic:admin) was dropped although the host owner the
adoption resumes as can adopt it. Judge rows for host_owner_subject(). The test
now also registers Platform(mobile) first: a routeless row with that label still
adopts while the hermes-mobile plugin is loaded.

hermes_cli/sessions_adopt.py

@@ -24,6 +24,7 @@ def adoptable_sessions(path) -> list[dict]:
     count a dry run reports is what an adoption run attempts. A row the owner already bound is not
     offered again, which makes a second run a no-op."""
     from hermes_state import SessionDB
+    from gateway.owner_identity import host_owner_subject
     from hermes_state_local import POLICY_PREFIX
     from hermes_state_local_migration import LEGACY_LOCAL_SOURCES, LEGACY_PREFIX, not_client_labels, validate_legacy_row
     from hermes_state_runtime import RuntimeStoreError
@@ -53,7 +54,9 @@ def adoptable_sessions(path) -> list[dict]:
             if tip is None or POLICY_PREFIX + key in bound or LEGACY_PREFIX + key in bound:
                 continue
             try:
-                validate_legacy_row(db, tip)
+                # The host runs this command: judge each row for the owner the adoption resumes as, so a
+                # chat a phone app stored under the dashboard login (``basic:admin``) is offered too.
+                validate_legacy_row(db, tip, subject=host_owner_subject())
             except RuntimeStoreError:
                 continue
             found.append(tip)

tests/gateway/test_legacy_client_label_adoption.py

@@ -45,6 +45,12 @@ async def test_a_phone_apps_own_label_resumes_writable_and_a_webui_row_stays_rea
         db.create_session(sid, source=source, model='m', cwd=str(tmp_path), user_id=user_id)
         db.append_message(sid, role='user', content='hi from ' + sid)
         db.end_session(sid, 'ws_orphan_reap')
+    # hermes-mobile installed registers Platform('mobile'): a routeless row with that label still adopts.
+    from gateway.config import Platform
+    Platform._add_pseudo_member('mobile')
+    from hermes_cli.sessions_adopt import adoptable_sessions
+    offered = {row['id'] for row in adoptable_sessions(db.db_path)}
+    assert {'phone-mobile', 'phone-ios'} <= offered and not offered & {'webui-row', 'teams-row', 'curator-row'}
     for i, sid in enumerate(('phone-mobile', 'phone-ios')):
         resumed = await desktop.dispatch({'id': i, 'method': 'session.resume', 'params': {'session_id': sid}})
         assert resumed.get('result', {}).get('session_id') == sid, resumed