feat(hub): add markdown_to_pdf tool and default web tools

Teachers need ad-hoc Markdown → PDF. Ship an MCP tool powered by
md-to-pdf (Marked + headless Chrome) so remote images/CSS work, with
workspace-scoped basedir, front-matter stripped so untrusted markdown
cannot override dest/basedir/launch options, and MathJax for $/$ math.

Also include WebFetch and WebSearch in the unrestricted role tool
surface by default. Deploy skips Puppeteer's browser download and
expects a host Chrome/Chromium (PUPPETEER_EXECUTABLE_PATH / CHROME_PATH).
This commit is contained in:
2026-07-18 13:33:20 +08:00
parent a12984d174
commit 4e01c18cac
10 changed files with 2100 additions and 12 deletions
+1491 -5
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