fix(markdown): 防止 pre 长行撑大 markdown 容器

通过 codeTagProps 设置 white-space: pre-wrap 和 word-break: break-all，
让代码块内长行自动换行，避免撑开容器

Made-with: Cursor

Author: safe1ine

frontend/src/components/common/markdown.tsx

@@ -262,6 +262,7 @@ export function Markdown({ children, allowHtml = false, allowInternalLink = true
                 language={language}
                 PreTag="pre"
                 wrapLines={true}
+                codeTagProps={{ style: { wordBreak: 'break-all', whiteSpace: 'pre-wrap' } }}
               >
                 {code}
               </SyntaxHighlighter>