v0.29.1b1

see https://ubcode.useblocks.com/development/changelog.html#release-0-29-1b1

✨ New Features

• content field on need items

  Need items now carry an optional content field that stores the raw body text of the directive. Content is included in JSON and Parquet exports, queryable in filter expressions (e.g. "keyword" in content), returned by the MCP single-need endpoint, and checked in ubc diff. Content is preserved through directive, import, and external need sources.

• follow_links configuration for codelinks source discovery

  A new follow_links option in [codelinks.projects.*.source_discover] controls whether symbolic links are followed during codelinks file discovery.

👌 Improvements

• Aligned codelinks file discovery behaviour with sphinx-codelinks, improving consistency between the IDE tooling and the Sphinx extension. The C/C++ recognised file extensions were updated (now .c, .ci, .cpp, .cc, .cxx, .h, .hpp, .hxx, .hh, .ihl).

🐛 Fixes

• Fixed mermaid diagram labels in the VS Code RST preview being clipped mid-word.