Shinylive/Pyodide was failing because it tried to install packages that
are already pre-built in Pyodide (like matplotlib and its C-extension
dependencies).
Changes:
- Split requirements into two files:
- requirements.txt: Minimal deps for Shinylive (only astral, shiny, shinyswatch)
- requirements-dev.txt: Full deps for local development (includes matplotlib)
- Update README to use requirements-dev.txt for local development
- Update GitHub workflow to use requirements-dev.txt
- Remove matplotlib version pinning as Pyodide provides it
This fixes the "Can't find a pure Python 3 wheel for 'contourpy'" error
when loading the webapp at https://basnijholt.github.io/adaptive-lighting/