fix: expand sendable file extensions — add txt, md, json, py, sh, zip etc

.txt was not in the extension whitelist so bridge detected the path
but skipped sending. Now supports common text, code, config, and
archive formats.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: AliceLJY

bridge.js

@@ -601,7 +601,7 @@ const SENDABLE_EXTS = new Set([".png", ".jpg", ".jpeg", ".gif", ".webp", ".pdf",
 function extractFilePathsFromText(text, fileList) {
   const HOME = process.env.HOME || "/Users/anxianjingya";
   const existing = new Set(fileList.map(f => f.filePath));
-  const extGroup = "png|jpg|jpeg|gif|webp|pdf|docx|xlsx|csv|html|svg";
+  const extGroup = "png|jpg|jpeg|gif|webp|pdf|docx|xlsx|csv|html|svg|txt|md|json|js|ts|py|sh|yaml|yml|xml|log|zip|tar|gz";
 
   // 1. 绝对路径（/开头）
   const absPattern = new RegExp(`(\\/(?:[\\w.\\-]+\\/)*[\\w.\\-\\u4e00-\\u9fff\\u3000-\\u303f\\uff00-\\uffef ]+\\.(?:${extGroup}))`, "gi");
@@ -984,7 +984,7 @@ async function processPrompt(ctx, prompt) {
     await progress.start();
 
     // 注入 bridge 行为指令
-    const bridgeHint = "[系统提示: 你通过 Telegram Bridge 与用户对话。当用户要求截图、生成文件、或发送已有文件时，只需在回复中写出文件的完整绝对路径（如 /Users/anxianjingya/Desktop/file.png），bridge 会自动检测路径并将文件发送给用户。绝对不要自己调用 curl/Telegram Bot API 来发送文件。]\n\n";
+    const bridgeHint = "[系统提示: 你通过 Telegram Bridge 与用户对话。当用户要求发送文件、截图或查看图片时：1) 用工具找到/生成文件 2) 在回复中包含文件的完整绝对路径（如 /Users/xxx/file.png），bridge 会自动检测路径并发送给用户。用户不需要知道路径，你来找。绝对不要自己调用 curl/Telegram Bot API。]\n\n";
     const fullPrompt = await buildPromptWithContext(ctx, bridgeHint + prompt);
     const session = getSession(chatId);
     // 只复用同后端的 session
@@ -1118,7 +1118,7 @@ async function processPrompt(ctx, prompt) {
 
     if (resultSuccess && capturedFiles.length > 0) {
       const IMAGE_EXTS = new Set([".png", ".jpg", ".jpeg", ".gif", ".webp"]);
-      const DOC_EXTS = new Set([".pdf", ".docx", ".xlsx", ".csv", ".html"]);
+      const DOC_EXTS = new Set([".pdf", ".docx", ".xlsx", ".csv", ".html", ".txt", ".md", ".json", ".js", ".ts", ".py", ".sh", ".yaml", ".yml", ".xml", ".log", ".zip", ".tar", ".gz"]);
       const HOME = process.env.HOME || "";
       const sentPaths = new Set();
       for (const f of capturedFiles) {