Retry failed weather fetches so the bar icon can't stay stuck

The Open-Meteo fetch is the only thing that updates the bar icon when a
location is configured, but a failed response was dropped silently with
no retry, leaving a stale icon until the next refresh tick. Give it the
same short retry loop the wttr fetch already has, and reset both retry
budgets on each full refresh cycle so an exhausted round (e.g. waking
before the network is back) doesn't starve retries for the session.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

shell/plugins/panels/weather/Panel.qml

@@ -87,6 +87,7 @@ Panel {
   onLocationQueryChanged: {
     if (savingLocation) savingLocationQueryStarted = true
     forecastRetries = 0
+    dailyForecastRetries = 0
     forecastProc.running = false
     dailyForecastProc.running = false
     Qt.callLater(refresh)
@@ -112,6 +113,7 @@ Panel {
   }
 
   property int forecastRetries: 0
+  property int dailyForecastRetries: 0
 
   // Click-to-edit state for the location label.
   property bool editingLocation: false
@@ -148,6 +150,11 @@ Panel {
   readonly property string reportHumidity:  current ? (current.humidity + "%") : ""
 
   function refresh() {
+    // Each full refresh cycle gets a fresh retry budget, so an earlier
+    // exhausted round (e.g. waking with the network still down) doesn't
+    // starve retries for the rest of the session.
+    forecastRetries = 0
+    dailyForecastRetries = 0
     if (!forecastProc.running) forecastProc.running = true
     if (root.locationQuery === "" && !locationProc.running) locationProc.running = true
     // With stored coordinates this fetches open-meteo right away — no need
@@ -368,22 +375,42 @@ Panel {
     onTriggered: if (!forecastProc.running) forecastProc.running = true
   }
 
+  // With configured coordinates this fetch is the only thing that updates the
+  // bar icon, so a dropped response (e.g. waking before the network is back)
+  // must retry rather than wait out the refresh timer with a stale icon.
+  function scheduleDailyForecastRetry() {
+    if (dailyForecastRetries >= 3) return
+    dailyForecastRetries++
+    dailyForecastRetryTimer.restart()
+  }
+
+  Timer {
+    id: dailyForecastRetryTimer
+    interval: 2500
+    onTriggered: root.refreshDailyForecast(null)
+  }
+
   Process {
     id: dailyForecastProc
     stdout: StdioCollector {
       waitForEnd: true
       onStreamFinished: {
         var raw = String(text || "").trim()
-        if (!raw) return
+        if (!raw) {
+          root.scheduleDailyForecastRetry()
+          return
+        }
         try {
           var parsed = JSON.parse(raw)
           var parsedCurrent = Model.openMeteoCurrentCondition(parsed)
           root.dailyForecastReport = parsed
           root.label = Model.currentIcon(parsedCurrent, root.label)
+          root.dailyForecastRetries = 0
           if (Model.weatherResponseCompletesSave(root.hasConfiguredCoordinates, "open-meteo"))
             root.finishSavingLocation()
         } catch (e) {
-          // Keep last-good daily forecast on parse failure.
+          // Keep last-good daily forecast visible, but try again shortly.
+          root.scheduleDailyForecastRetry()
         }
       }
     }
@@ -418,6 +445,7 @@ Panel {
       if (!root.savingLocationQueryStarted) {
         root.savingLocationQueryStarted = true
         root.forecastRetries = 0
+        root.dailyForecastRetries = 0
         forecastProc.running = false
         dailyForecastProc.running = false
         Qt.callLater(root.refresh)