feat(settings): implement persistent auto-refresh functionality

Adds a configurable and persistable auto-refresh setting to the application's settings dialog. This feature allows users to control whether the repository view automatically updates its status, branch information, and remote tracking in the background. The logic is integrated across core components to manage state changes and provide visual feedback to the user.

- Auto-refresh state is now persistent and managed via local storage.
- Updated settings dialog UI to include a dedicated toggle for auto-refresh.
- Removed manual auto-refresh toggling from the repository toolbar component.

src/App.svelte

@@ -185,6 +185,7 @@
   const ANALYTICS_SETTINGS_KEY = "gitlite.analyticsSettings.v1";
   const APP_THEME_KEY = "gitlite.theme.v1";
   const APP_LANGUAGE_KEY = "gitlite.language.v1";
+  const AUTO_REFRESH_ENABLED_KEY = "gitlite.autoRefreshEnabled.v1";
   const COMMIT_PANEL_HEIGHT_KEY = "gitlite.commitPanelHeight.v1";
   const LEFT_SIDEBAR_WIDTH_KEY = "gitlite.leftSidebarWidth.v1";
   const LEFT_BRANCH_PANEL_HEIGHT_KEY = "gitlite.leftBranchPanelHeight.v1";
@@ -311,7 +312,7 @@
   let conflictTarget = "";
   let conflict: ConflictFile | null = null;
   let preparedResolutions: Record<string, PreparedResolution> = {};
-  let autoRefreshEnabled = true;
+  let autoRefreshEnabled = loadStoredBoolean(AUTO_REFRESH_ENABLED_KEY, true);
   let autoRefreshInFlight = false;
   let credDialogOpen = false;
   let credDialogAction: CredentialAction | null = null;
@@ -868,15 +869,19 @@
     if (appTheme === "system") applyThemePreference(appTheme);
   }
 
-  function saveAppSettings(next: AnalyticsSettings, nextTheme: AppTheme, nextLanguage: AppLanguage) {
+  function saveAppSettings(next: AnalyticsSettings, nextTheme: AppTheme, nextLanguage: AppLanguage, nextAutoRefresh: boolean) {
+    const autoRefreshWasEnabled = autoRefreshEnabled;
     analyticsSettings = next;
     appTheme = nextTheme;
     appLanguage = nextLanguage;
+    autoRefreshEnabled = nextAutoRefresh;
     persistAnalyticsSettings(next);
     persistThemePreference(nextTheme);
     persistLanguagePreference(nextLanguage);
+    persistStoredBoolean(AUTO_REFRESH_ENABLED_KEY, nextAutoRefresh);
     appSettingsOpen = false;
-    if (next.enabled) trackEvent("settings_saved", { analytics_enabled: 1, theme: nextTheme, language: nextLanguage });
+    if (nextAutoRefresh && !autoRefreshWasEnabled) void autoRefreshTick();
+    if (next.enabled) trackEvent("settings_saved", { analytics_enabled: 1, theme: nextTheme, language: nextLanguage, auto_refresh: nextAutoRefresh ? 1 : 0 });
   }
 
   function updateCommitMessage(message: string) {
@@ -982,11 +987,6 @@
     }
   }
 
-  function toggleAutoRefresh() {
-    autoRefreshEnabled = !autoRefreshEnabled;
-    if (autoRefreshEnabled) void autoRefreshTick();
-  }
-
   // ── Updates ────────────────────────────────────────────────────────────────
 
   async function checkForUpdates() {
@@ -3609,8 +3609,6 @@
         {operation}
         ahead={status?.ahead ?? 0}
         behind={status?.behind ?? 0}
-        {autoRefreshEnabled}
-        {autoRefreshInFlight}
         language={appLanguage}
         onFetch={fetchRepo}
         onPull={pullRepo}
@@ -3621,7 +3619,6 @@
         onInteractiveRebase={openInteractiveRebase}
         onReflog={openReflog}
         onOpenInExplorer={openActiveRepoInExplorer}
-        onToggleAutoRefresh={toggleAutoRefresh}
       />
     {/if}
 
@@ -4191,6 +4188,7 @@
     analytics={analyticsSettings}
     theme={appTheme}
     language={appLanguage}
+    autoRefresh={autoRefreshEnabled}
     onSave={saveAppSettings}
     onClose={() => { appSettingsOpen = false; }}
   />