fix(settings): wire up saveModel to persist changes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/components/settings/LLMTableRow.vue

@@ -14,6 +14,7 @@ const emit = defineEmits<{
   (e: 'update', data: LLMModelConfig): void
   (e: 'delete'): void
   (e: 'test', data: LLMModelConfig): void
+  (e: 'save', data: LLMModelConfig): void
 }>()
 
 const showApiKey = ref(false)
@@ -115,7 +116,7 @@ function onProviderChange() {
         <button
           class="save-btn"
           :disabled="status !== 'available'"
-          @click="emit('update', editingModel)"
+          @click="emit('save', editingModel)"
         >
           保存
         </button>

frontend/src/views/SettingsView.vue

@@ -420,6 +420,7 @@ onMounted(loadSettings)
                 @update="(m) => updateModel('chat', index, m)"
                 @delete="removeModel('chat', index)"
                 @test="(m) => testModel('chat', index, m)"
+                @save="(m) => saveModel('chat', index)"
               />
             </div>
           </div>
@@ -443,6 +444,7 @@ onMounted(loadSettings)
                 @update="(m) => updateModel('vlm', index, m)"
                 @delete="removeModel('vlm', index)"
                 @test="(m) => testModel('vlm', index, m)"
+                @save="(m) => saveModel('vlm', index)"
               />
             </div>
           </div>
@@ -466,6 +468,7 @@ onMounted(loadSettings)
                 @update="(m) => updateModel('embedding', index, m)"
                 @delete="removeModel('embedding', index)"
                 @test="(m) => testModel('embedding', index, m)"
+                @save="(m) => saveModel('embedding', index)"
               />
             </div>
           </div>
@@ -489,6 +492,7 @@ onMounted(loadSettings)
                 @update="(m) => updateModel('rerank', index, m)"
                 @delete="removeModel('rerank', index)"
                 @test="(m) => testModel('rerank', index, m)"
+                @save="(m) => saveModel('rerank', index)"
               />
             </div>
           </div>