feat(openwrt): add WAN diagnostics to get-status and UI

get_wan_status now returns: radio0_disabled, sta_iface (from iw dev),
sta_state (operstate), assoc_ssid (actually associated SSID vs
configured), and recent wifi_log lines from logread. The WAN panel
shows a diagnostic grid when configured but not connected so the user
can see exactly what's wrong without digging into server logs.

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

neode-ui/src/views/server/OpenWrtGateway.vue

@@ -33,9 +33,14 @@ interface TollGateStatus {
 interface WanStatus {
   configured: boolean
   ssid: string
+  assoc_ssid: string
   encryption: string
   ip: string
   internet: boolean
+  radio0_disabled: boolean
+  sta_iface: string
+  sta_state: string
+  wifi_log: string
 }
 
 interface RouterStatus {
@@ -356,7 +361,7 @@ onMounted(() => load())
 
         <!-- Current status (idle) -->
         <template v-if="wanStep === 'idle' || wanStep === 'done'">
-          <div v-if="status.wan?.configured" class="flex items-center gap-3">
+          <div v-if="status.wan?.configured" class="flex items-center gap-3 mb-3">
             <span class="w-2 h-2 rounded-full inline-block flex-shrink-0"
               :class="status.wan.internet ? 'bg-green-400' : 'bg-yellow-400 animate-pulse'"></span>
             <div>
@@ -366,10 +371,44 @@ onMounted(() => load())
               </div>
             </div>
           </div>
-          <div v-else class="text-sm text-white/50">
+          <div v-else class="text-sm text-white/50 mb-3">
             Not configured — router has no internet access.
           </div>
-          <p v-if="wanStep === 'done'" class="mt-3 text-xs text-green-400">
+
+          <!-- Diagnostics (shown when not connected) -->
+          <dl v-if="status.wan?.configured && !status.wan.internet"
+              class="grid grid-cols-2 gap-x-4 gap-y-2 text-xs mt-1 mb-3 border-t border-white/10 pt-3">
+            <div>
+              <dt class="text-white/30 mb-0.5">Radio</dt>
+              <dd :class="status.wan.radio0_disabled ? 'text-red-400' : 'text-green-400'">
+                {{ status.wan.radio0_disabled ? 'disabled' : 'enabled' }}
+              </dd>
+            </div>
+            <div>
+              <dt class="text-white/30 mb-0.5">Interface</dt>
+              <dd class="text-white/70 font-mono">
+                {{ status.wan.sta_iface || 'none' }}
+                <span v-if="status.wan.sta_iface" class="ml-1"
+                  :class="status.wan.sta_state === 'up' ? 'text-green-400' : 'text-yellow-400'">
+                  ({{ status.wan.sta_state }})
+                </span>
+              </dd>
+            </div>
+            <div>
+              <dt class="text-white/30 mb-0.5">Associated to</dt>
+              <dd class="text-white/70">{{ status.wan.assoc_ssid || 'none' }}</dd>
+            </div>
+            <div>
+              <dt class="text-white/30 mb-0.5">Configured SSID</dt>
+              <dd class="text-white/70">{{ status.wan.ssid || '—' }}</dd>
+            </div>
+            <div v-if="status.wan.wifi_log" class="col-span-2">
+              <dt class="text-white/30 mb-1">Recent wifi log</dt>
+              <dd class="font-mono text-white/50 text-[10px] leading-relaxed whitespace-pre-wrap break-all bg-black/20 rounded p-2">{{ status.wan.wifi_log }}</dd>
+            </div>
+          </dl>
+
+          <p v-if="wanStep === 'done'" class="mt-2 text-xs text-green-400">
             WAN configured. Router is connecting…
           </p>
         </template>