fix: git URL后target只接受合法路径字符(拒绝中文)

wwwroot/api/cockpit_chat.dspy

@@ -888,7 +888,12 @@ if action == 'send_message':
                     m = re.search(r'(git@[\w.]+:[\w./-]+\.git|https?://[\w./-]+\.git)', cmd)
                     repo_url = m.group(0)
                     rest = cmd[m.end():].strip()
-                    target = rest.split()[0] if rest else ''
+                    # target 只接受合法路径片段（字母数字/-_.），拒绝中文
+                    target = ''
+                    if rest:
+                        first_token = rest.split()[0] if rest.split() else ''
+                        if first_token and re.match(r'^[a-zA-Z0-9/_.-]+$', first_token):
+                            target = first_token
                     if target and not target.startswith('-'):
                         repo_target = target
                         cmd = f'git clone {repo_url} {target}'