v0.4.0 — MCP publishing support

Highlights

• MCP server: pagecast mcp provides stdio tools for status, page listing, content publishing, file publishing, and revocation.
• Safer agent publishing: publish_content writes supplied HTML/Markdown into isolated Pagecast storage; publish_file excludes sibling assets unless explicitly confirmed.
• README MCP guide: client config, tool reference, example arguments, --data-dir, and organization/VPN deployment boundaries.
• Stdio transport now serializes request handling so clients receive responses in request order.

Release artifacts

• npm: pagecast@0.4.0
• Docker/GHCR image and browser extension zip are published by the release workflow.

Validation

• npm run check
• npm test (192 passing)
• npm pack --dry-run --json