v0.11.9: 修复纯文本消息卡片丢失 + 子代理参数可配置

fix: 恢复纯文本消息的 else if 分支，修复 fed1e6d 重构后用户消息卡片不显示
fix: allVids 类型注解补充 base64 字段，消除 TS2322 编译错误
feat: 子代理最大轮次和超时接入设置面板（subAgentMaxLoops/subAgentTimeout）
chore: 版本号 0.11.7 → 0.11.9

src/renderer/components/input-area.ts

@@ -1018,7 +1018,7 @@ async function sendMessageWithAgentLoop(text: string, currentSession: ChatSessio
     } else if (pendingImages.length > 1) {
       apiParts.push(`[${pendingImages.length} 张图片: ${pendingImages.map(img => img.name).join(', ')}]`);
     }
-    let allVids: Array<{ name: string; count: number; dur: number; frames: Array<{ timestampSeconds: number; name: string }> }> = [];
+    let allVids: Array<{ name: string; count: number; dur: number; frames: Array<{ timestampSeconds: number; name: string; base64: string }> }> = [];
     if (hasVideos) {
       if (pendingVideoMeta && pendingVideoFrames.length > 0) {
         allVids.push({ name: pendingVideoMeta.fileName, count: pendingVideoFrames.length, dur: pendingVideoMeta.duration, frames: pendingVideoFrames });
@@ -1052,6 +1052,18 @@ async function sendMessageWithAgentLoop(text: string, currentSession: ChatSessio
       msg._fileContents = pendingFiles.map(f => ({ language: f.language, content: f.content }));
     }
     msgsToAdd.push(msg);
+  } else if (text || pendingFiles.length > 0) {
+    // 纯文本/纯文件消息（无图片、视频附件）
+    const msg: ChatMessage = {
+      role: 'user',
+      content: text || '',
+      timestamp: now
+    };
+    if (userFiles.length > 0) {
+      msg.files = userFiles;
+      msg._fileContents = pendingFiles.map(f => ({ language: f.language, content: f.content }));
+    }
+    msgsToAdd.push(msg);
   }
 
   const isFirstMsg = currentSession.messages.length === 0;