fix: non-disruptive env check — drop wifi reload + misleading hop warning

- STA uplink disable now uses uci commit + ip link set wlan0 down instead of
  wifi reload, so the env check never bounces radios/APs/drops monitors
- Removed the wlan0mon 'hop is off' warning: field-verified hop=0 is normal
  (wlan1mon also reports 0 while scanning both bands); the STA/AP pinning
  checks are the real signals
- recon/status drops wlan0_hopping; UI keeps wlan0_sta + wlan0_pinned pills

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

@@ -1360,7 +1360,6 @@ def h_recon_status(ctx):
                  'hopper_online': _hopper_online(),
                  'wlan0_pinned': _wlan0_pinned(),
                  'wlan0_sta': _sta_uplink_enabled(),
-                 'wlan0_hopping': _wlan0_hopping(),
                  'history_reset': _recon_history_reset()}
 
 
@@ -3727,43 +3726,14 @@ def _sta_uplink_enabled():
 
 
 def _disable_sta_uplink():
+    """Disable the dummy_radio0 STA without bouncing the radios. The UCI flag
+    keeps it off across reboots/wifi reloads; taking wlan0 down immediately
+    frees phy0's channel for wlan0mon. Never runs `wifi reload` here — that
+    tears down live APs and drops the monitors mid-assessment."""
     device_run(['uci', 'set', 'wireless.dummy_radio0.disabled=1'])
     device_run(['uci', 'commit', 'wireless'])
-    device_run(['wifi', 'reload'], timeout=30)
-
-
-def _pineap_interfaces():
-    """Runtime pineapd interface table from ``_pineap INTERFACE LIST``:
-    {name: {'channels': int, 'bands': str, 'hop': str, 'pkts': int}}."""
-    rc, out, err = _pineap('INTERFACE', 'LIST', timeout=15)
-    if rc != 0:
-        return {}
-    result = {}
-    for line in (out or '').splitlines():
-        parts = line.split()
-        if len(parts) < 7 or not parts[0].startswith('wlan'):
-            continue
-        result[parts[0]] = {
-            'channels': int(parts[1]) if parts[1].isdigit() else None,
-            'bands': parts[2],
-            'type': parts[3],
-            'hop': parts[4],
-            'chan': parts[5],
-            'pkts': int(parts[6]) if parts[6].isdigit() else None,
-        }
-    return result
-
-
-def _wlan0_hopping():
-    """Whether pineapd is actually hopping wlan0mon at runtime. The band UCI
-    config can be correct while runtime hopping is off, which starves 2.4GHz
-    recon results entirely."""
-    ifaces = _pineap_interfaces()
-    mon = ifaces.get('wlan0mon')
-    if not mon:
-        return None
-    hop = mon.get('hop')
-    return bool(hop) and hop not in ('0', '', 'none', 'false')
+    for iface in ('wlan0',):
+        rc, out, err = device_run(['ip', 'link', 'set', iface, 'down'], timeout=10)
 
 
 def env_check():
@@ -3831,16 +3801,6 @@ def env_check():
     else:
         _env_step(report, 'pass', 'no radio0 AP pins wlan0mon')
 
-    hopping = _wlan0_hopping()
-    if hopping is False:
-        _env_step(report, 'warn', '2.4GHz recon starved: wlan0mon hopping is off at '
-                                  'runtime (INTERFACE LIST hop=0)')
-    elif hopping is None:
-        _env_step(report, 'warn', 'could not read pineapd interface state '
-                                  '(INTERFACE LIST failed)')
-    else:
-        _env_step(report, 'pass', 'wlan0mon hopping on (2.4GHz scanning active)')
-
     ENV_CHECK_STATE['report'] = report
     ENV_CHECK_STATE['overall'] = _env_overall(report)
     ENV_CHECK_STATE['updated'] = time.time()