fix crash after succeed run

Author: anhnh2002

README.md

@@ -19,9 +19,14 @@
   <a href="#quick-start"><strong>Quick Start</strong></a> •
   <a href="#cli-commands"><strong>CLI Commands</strong></a> •
   <a href="#documentation-output"><strong>Output Structure</strong></a> •
+  <a href="./docs/index.html"><strong>Repo Docs</strong></a> •
   <a href="https://arxiv.org/abs/2510.24428"><strong>Paper</strong></a>
 </p>
 
+<p align="center">
+  📚 <strong>CodeWiki documents itself</strong> — browse the generated documentation for this repository at <a href="./docs/index.html"><code>docs/index.html</code></a> (open in a browser, or visit the hosted GitHub Pages site).
+</p>
+
 <p align="center">
   <img src="./img/framework-overview.png" alt="CodeWiki Framework" width="600" style="border: 2px solid #e1e4e8; border-radius: 12px; padding: 20px;"/>
 </p>
@@ -317,6 +322,8 @@ Generated documentation includes both **textual descriptions** and **visual arti
 └── index.html               # Interactive viewer (with --github-pages)
 ```
 
+> **See it in action:** This repository's own docs are checked in under [`./docs/`](./docs/) — open [`./docs/index.html`](./docs/index.html) in a browser for the interactive viewer, or start from [`./docs/overview.md`](./docs/overview.md).
+
 ---
 
 ## Experimental Results
@@ -387,6 +394,7 @@ CodeWiki employs a three-stage process for comprehensive documentation generatio
 ## Additional Resources
 
 ### Documentation & Guides
+- **[This Repo's Generated Docs](./docs/index.html)** - Interactive documentation for CodeWiki itself, produced by CodeWiki (start at [`docs/overview.md`](./docs/overview.md))
 - **[MCP Server](codewiki/mcp/)** - Model Context Protocol server for IDE integrations
 - **[Docker Deployment](docker/DOCKER_README.md)** - Containerized deployment instructions
 - **[Development Guide](DEVELOPMENT.md)** - Project structure, architecture, and contributing guidelines

codewiki/src/be/utils.py

@@ -1,5 +1,6 @@
 import asyncio
 import re
+import sys
 import threading
 from pathlib import Path
 from typing import List, Tuple
@@ -143,7 +144,11 @@ def extract_mermaid_blocks(content: str) -> List[Tuple[int, str]]:
     return mermaid_blocks
 
 
-_PYTHONMONKEY_BROKEN = False
+# PythonMonkey 1.3.1 only supports Python 3.8–3.11. On 3.12+ it still imports,
+# but its SpiderMonkey cleanup runs on the wrong thread during _Py_Finalize and
+# segfaults at interpreter shutdown (macOS crash dialog after a successful run).
+# Skip it proactively so SpiderMonkey is never loaded into the process.
+_PYTHONMONKEY_BROKEN = sys.version_info >= (3, 12)
 
 
 async def _try_pythonmonkey_parse(diagram_content: str) -> str | None:
@@ -157,7 +162,6 @@ async def _try_pythonmonkey_parse(diagram_content: str) -> str | None:
     if _PYTHONMONKEY_BROKEN:
         return None
 
-    import sys
     import os
 
     try: