Add confirmation dialog for restoring default config

- Add Restore Default confirmation modal to settings.html
- Add translation strings to store.js
- Update claude-config.js to trigger modal instead of immediate restore

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

public/views/settings.html

@@ -543,6 +543,33 @@
                         <span x-show="loading" class="loading loading-spinner loading-xs"></span>
                     </button>
                 </div>
+
+                <!-- Restore Defaults Confirmation Modal -->
+                <dialog id="restore_defaults_modal" class="modal">
+                    <div class="modal-box bg-space-900 border-2 border-red-500/50">
+                        <h3 class="font-bold text-lg text-red-400 flex items-center gap-2">
+                            <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
+                            </svg>
+                            <span x-text="$store.global.t('confirmRestoreTitle')">Confirm Restore</span>
+                        </h3>
+                        <p class="py-4 text-gray-300" x-text="$store.global.t('confirmRestoreMessage')">
+                            Are you sure you want to restore Claude CLI to default settings? This will remove proxy configuration.
+                        </p>
+                        <div class="modal-action">
+                            <button class="btn btn-ghost text-gray-400" onclick="document.getElementById('restore_defaults_modal').close()"
+                                x-text="$store.global.t('cancel')">Cancel</button>
+                            <button class="btn bg-red-500 hover:bg-red-600 border-none text-white" @click="executeRestore()"
+                                :disabled="restoring"
+                                :class="{ 'loading': restoring }">
+                                <span x-text="$store.global.t('confirmRestore')" x-show="!restoring">Confirm Restore</span>
+                            </button>
+                        </div>
+                    </div>
+                    <form method="dialog" class="modal-backdrop">
+                        <button>close</button>
+                    </form>
+                </dialog>
             </div>
 
             <!-- Tab 3: Models Configuration -->