fix(file): handle empty text segment reads

modules/container_file_proxy.py

@@ -122,6 +122,16 @@ def _read_text_segment(root, payload):
         }
     data, lines = _read_text(target)
     total = len(lines)
+    if total == 0:
+        return {
+            "success": True,
+            "path": rel,
+            "content": "",
+            "size": size,
+            "line_start": 0,
+            "line_end": 0,
+            "total_lines": 0
+        }
     line_start = start if start and start > 0 else 1
     line_end = end if end and end >= line_start else total
     if line_start > total:

modules/file_manager.py

@@ -495,6 +495,17 @@ class FileManager:
         
         lines = result["lines"]
         total_lines = len(lines)
+        if total_lines == 0:
+            relative_path = self._relative_path(full_path)
+            return {
+                "success": True,
+                "path": relative_path,
+                "content": "",
+                "size": result["size"],
+                "line_start": 0,
+                "line_end": 0,
+                "total_lines": 0,
+            }
         start = start_line if start_line and start_line > 0 else 1
         end = end_line if end_line and end_line >= start else total_lines
         if start > total_lines: