fix(reliability): explicit hop baseline restore, immune to stale pager snapshot

payload/user/remote_access/pager-webui/server.py

@@ -4797,14 +4797,18 @@ def health_check():
         except Exception:
             pass
         # Restore the hopping baseline unless a Mark VIII role/attack holds
-        # the pause intentionally (_resume_hop self-guards against fighting a
-        # live Pager hop enable).
+        # the pause intentionally. Deliberately bypasses _resume_hop(): its
+        # pager-snapshot may carry a stale hop=0 captured while the old boot
+        # guard forced the value, which would silently keep 5 GHz pinned.
+        # Baseline policy: idle system => wlan1mon hops.
         if not _HOP_PAUSE_HELD:
             try:
                 before = _read_hop()
-                if before == '0':
+                if before != '1':
                     import mk8_events
-                    _resume_hop()
+                    device_run(['uci', 'set', 'pineapd.wlan1mon.hop=1'])
+                    device_run(['uci', 'commit', 'pineapd'])
+                    device_run(['/etc/init.d/pineapd', 'reload'], timeout=30)
                     mk8_events.log_event(
                         'guard_fix',
                         msg='restored wlan1mon.hop baseline (was %s)' % before)

tests/test_health.py

@@ -282,10 +282,11 @@ class HopBaselineTest(unittest.TestCase):
                                    return_value=[]), \
                  mock.patch('mk8_guard.reconcile',
                             return_value={'changed': [], 'pool_cleared': False,
-                                          'monitors_raised': []}), \
-                 mock.patch.object(server, '_resume_hop') as resume:
+                                          'monitors_raised': []}):
                 server.health_check()
-            resume.assert_called_once()
+            sets = [r for r in self.runs
+                    if r[:3] == ['uci', 'set', 'pineapd.wlan1mon.hop=1']]
+            self.assertEqual(len(sets), 1)
         finally:
             server._HOP_PAUSE_HELD = old_held
 
@@ -300,9 +301,10 @@ class HopBaselineTest(unittest.TestCase):
                                    return_value=[]), \
                  mock.patch('mk8_guard.reconcile',
                             return_value={'changed': [], 'pool_cleared': False,
-                                          'monitors_raised': []}), \
-                 mock.patch.object(server, '_resume_hop') as resume:
+                                          'monitors_raised': []}):
                 server.health_check()
-            resume.assert_not_called()
+            sets = [r for r in self.runs
+                    if r[:3] == ['uci', 'set', 'pineapd.wlan1mon.hop=1']]
+            self.assertEqual(len(sets), 0)
         finally:
             server._HOP_PAUSE_HELD = old_held