fix: rsync 进度帧实时输出(stdbuf行缓冲) + 普通日志行推送TUI日志栏

transfer.py

@@ -450,7 +450,11 @@ class TaskRunner:
                   append=(self.cfg.policy != "ask"))
         if self.cfg.backend == "tar":
             return ["bash", "-c", backend.build_cmd(self.cfg.source, self.cfg.dest, **kw)]
-        return backend.build_cmd(self.cfg.source, self.cfg.dest, **kw)
+        cmd = backend.build_cmd(self.cfg.source, self.cfg.dest, **kw)
+        if self.cfg.backend == "rsync":
+            # stdbuf 行缓冲: rsync progress2 帧逐行输出, 避免管道全缓冲攒帧
+            return ["stdbuf", "-oL"] + cmd
+        return cmd
 
     # -- 输出分发
     def _dispatch(self, line: str) -> None:
@@ -498,9 +502,11 @@ class TaskRunner:
                 self.stats.pct = pct
                 self._emit_stats()
                 return
-            if stripped.startswith(("./", "/", "-")) or "\t" in stripped:
-                pass  # tar 文件条目
-        self.lm.write(line)
+        # 兜底: 普通行写日志文件 + 推送到 TUI 日志栏
+        if line.strip():
+            self.lm.write(line)
+            if self.on_log:
+                self.on_log(line)
 
     def _merge_stats(self, st: ProgressStats) -> None:
         if st.bytes_done: