feat: add option to disable update checker

Add a new setting in User Profile > Settings to disable automatic
update checking on startup and dashboard.

- Adds 'Disable Update Check' toggle in profile settings
- Skips GitHub API calls when disabled (reduces network requests)
- Works for both web app and Electron client

Fixes Termix-SSH/Support#410

src/locales/en.json

@@ -1957,6 +1957,9 @@
     "terminalSettings": "Terminal",
     "hostSidebarSettings": "Host & Sidebar",
     "snippetsSettings": "Snippets",
+    "updateSettings": "Updates",
+    "disableUpdateCheck": "Disable Update Check",
+    "disableUpdateCheckDesc": "Stop checking for new versions on startup and dashboard. Reduces network requests.",
     "currentPassword": "Current Password",
     "passwordChangedSuccess": "Password changed successfully! Please log in again.",
     "failedToChangePassword": "Failed to change password. Please check your current password and try again.",

src/locales/zh.json

@@ -1882,6 +1882,9 @@
     "terminalSettings": "终端",
     "hostSidebarSettings": "主机和侧边栏",
     "snippetsSettings": "片段",
+    "updateSettings": "更新",
+    "disableUpdateCheck": "禁用更新检查",
+    "disableUpdateCheckDesc": "停止在启动和仪表板上检查新版本，减少网络请求。",
     "currentPassword": "当前密码",
     "passwordChangedSuccess": "密码已成功更改！请重新登录。",
     "failedToChangePassword": "密码更改失败。请检查您当前的密码并重试。",

src/ui/desktop/apps/dashboard/Dashboard.tsx

@@ -160,13 +160,16 @@ export function Dashboard({
         const uptimeInfo = await getUptime();
         setUptime(uptimeInfo.formatted);
 
-        const versionInfo = await getVersionInfo();
-        setVersionText(`v${versionInfo.localVersion}`);
-        if (
-          versionInfo.status === "up_to_date" ||
-          versionInfo.status === "requires_update"
-        ) {
-          setVersionStatus(versionInfo.status);
+        const updateCheckDisabled = localStorage.getItem("disableUpdateCheck") === "true";
+        if (!updateCheckDisabled) {
+          const versionInfo = await getVersionInfo();
+          setVersionText(`v${versionInfo.localVersion}`);
+          if (
+            versionInfo.status === "up_to_date" ||
+            versionInfo.status === "requires_update"
+          ) {
+            setVersionStatus(versionInfo.status);
+          }
         }
 
         try {

src/ui/desktop/user/ElectronVersionCheck.tsx

@@ -30,6 +30,11 @@ export function ElectronVersionCheck({
   const lineColor = isDarkMode ? "#151517" : "#f9f9f9";
 
   useEffect(() => {
+    const updateCheckDisabled = localStorage.getItem("disableUpdateCheck") === "true";
+    if (updateCheckDisabled) {
+      onContinue();
+      return;
+    }
     if (isElectron()) {
       checkForUpdates();
     } else {

src/ui/desktop/user/UserProfile.tsx

@@ -133,6 +133,9 @@ export function UserProfile({
     const saved = localStorage.getItem("showHostTags");
     return saved !== null ? saved === "true" : true;
   });
+  const [disableUpdateCheck, setDisableUpdateCheck] = useState<boolean>(
+    localStorage.getItem("disableUpdateCheck") === "true",
+  );
   const [userRoles, setUserRoles] = useState<UserRole[]>([]);
 
   useEffect(() => {
@@ -212,6 +215,11 @@ export function UserProfile({
     window.dispatchEvent(new Event("showHostTagsChanged"));
   };
 
+  const handleDisableUpdateCheckToggle = (enabled: boolean) => {
+    setDisableUpdateCheck(enabled);
+    localStorage.setItem("disableUpdateCheck", enabled.toString());
+  };
+
   const handleDeleteAccount = async (e: React.FormEvent) => {
     e.preventDefault();
     setDeleteLoading(true);
@@ -613,6 +621,28 @@ export function UserProfile({
                     </div>
                   </div>
                 </div>
+
+                <div className="rounded-lg border-2 border-edge bg-elevated p-4">
+                  <h3 className="text-lg font-semibold mb-4">
+                    {t("profile.updateSettings")}
+                  </h3>
+                  <div className="space-y-4">
+                    <div className="flex items-center justify-between">
+                      <div>
+                        <Label className="text-foreground-secondary">
+                          {t("profile.disableUpdateCheck")}
+                        </Label>
+                        <p className="text-sm text-muted-foreground mt-1">
+                          {t("profile.disableUpdateCheckDesc")}
+                        </p>
+                      </div>
+                      <Switch
+                        checked={disableUpdateCheck}
+                        onCheckedChange={handleDisableUpdateCheckToggle}
+                      />
+                    </div>
+                  </div>
+                </div>
               </TabsContent>
 
               <TabsContent value="security" className="space-y-4">