重构: 巨函数拆分 + 清理历史标记注释 + custom_prompt/停止按钮/tunnel 改进

src/components/settings/AdvancedSection.vue

@@ -38,6 +38,16 @@
           <option :value="3600000">{{ $t('settings.approvalTimeout60m') }}</option>
         </select>
       </SettingRow>
+      <!-- 自定义提示词:注入到 AI 系统 prompt 末尾,用户可自定义 AI 行为偏好 -->
+      <SettingRow ref="rowCustomPrompt" :label="$t('settings.labelCustomPrompt')" :desc="$t('settings.descCustomPrompt')">
+        <textarea
+          v-model="customPrompt"
+          class="custom-prompt-input"
+          :placeholder="$t('settings.placeholderCustomPrompt')"
+          rows="4"
+          @change="onCustomPromptChange"
+        />
+      </SettingRow>
     </div>
 
     <!-- all 二次确认弹层(独立,不与 Settings 壳层共用:壳层按钮写死「删除」不适合「确认接管」) -->
@@ -108,9 +118,11 @@ const settings = reactive({
   // 审批超时(ms):0=不限时,缺省 900000(15min);仅固定合法选项,脏值回退默认
   approvalTimeout: clampApprovalTimeout(appSettings.get<number>('df-approval-timeout', 900000)),
 })
+const customPrompt = ref(appSettings.get<string>('custom_prompt', ''))
 
 const rowAutoExecute = useTemplateRef<InstanceType<typeof SettingRow>>('rowAutoExecute')
 const rowLogLevel = useTemplateRef<InstanceType<typeof SettingRow>>('rowLogLevel')
+const rowCustomPrompt = useTemplateRef<InstanceType<typeof SettingRow>>('rowCustomPrompt')
 const rowApprovalTimeout = useTemplateRef<InstanceType<typeof SettingRow>>('rowApprovalTimeout')
 
 // 上一次确认生效的档位:all 二次确认取消时恢复此值(非写死 low),避免 medium 用户误选 all
@@ -152,6 +164,11 @@ function markSaved() {
 }
 
 // 下一笔发起的审批即生效(aiShared.startApprovalTimer 每次实时读),已在跑的计时器沿用旧值。
+function onCustomPromptChange() {
+  appSettings.set('custom_prompt', customPrompt.value)
+  rowCustomPrompt.value?.markSaved()
+}
+
 function onApprovalTimeoutChange() {
   appSettings.set('df-approval-timeout', settings.approvalTimeout)
   rowApprovalTimeout.value?.markSaved()
@@ -192,6 +209,23 @@ function onApprovalTimeoutChange() {
 .confirm-actions { display: flex; justify-content: flex-end; gap: 8px; }
 .btn-danger { background: var(--df-danger); color: #fff; }
 .btn-danger:hover { filter: brightness(1.1); }
+.custom-prompt-input {
+  width: 100%;
+  padding: 8px;
+  font-size: 13px;
+  font-family: inherit;
+  border: 0.5px solid var(--df-border);
+  border-radius: var(--df-radius-sm);
+  background: var(--df-bg);
+  color: var(--df-text);
+  resize: vertical;
+  min-height: 80px;
+  line-height: 1.5;
+}
+.custom-prompt-input:focus {
+  outline: none;
+  border-color: var(--df-primary);
+}
 .confirm-enter-active, .confirm-leave-active { transition: opacity 0.15s; }
 .confirm-enter-from, .confirm-leave-to { opacity: 0; }
 </style>