Enhance password input fields in EditNodeDialog and RegisterNodeDialog

- Added `autoComplete="new-password"` attribute to password input fields in both dialogs to improve security and user experience during password entry.

frontend/src/features/admin/nodes/EditNodeDialog.tsx

@@ -64,7 +64,13 @@ export function EditNodeDialog({ node, open, onOpenChange }: { node: NodeDto; op
             <Label htmlFor="editPassword">
               {t('admin.nodes.password')} ({t('admin.nodes.optional')})
             </Label>
-            <Input id="editPassword" type="password" value={password} onChange={(e) => setPassword(e.target.value)} />
+            <Input
+              id="editPassword"
+              type="password"
+              autoComplete="new-password"
+              value={password}
+              onChange={(e) => setPassword(e.target.value)}
+            />
           </div>
           <Button type="submit" disabled={!name.trim() || mutation.isPending}>
             {t('admin.roles.save')}

frontend/src/features/admin/nodes/RegisterNodeDialog.tsx

@@ -72,7 +72,14 @@ export function RegisterNodeDialog() {
           </div>
           <div className="flex flex-col gap-1.5">
             <Label htmlFor="nodePassword">{t('admin.nodes.password')}</Label>
-            <Input id="nodePassword" type="password" value={password} onChange={(e) => setPassword(e.target.value)} required />
+            <Input
+              id="nodePassword"
+              type="password"
+              autoComplete="new-password"
+              value={password}
+              onChange={(e) => setPassword(e.target.value)}
+              required
+            />
           </div>
           <div className="flex flex-col gap-1.5">
             <Label htmlFor="nodeLocation">{t('admin.nodes.location')}</Label>