[ickc]

• Cap panflute at 2.3.x (>=2.3.1,<2.4): reverts 6aa2e62. Each panflute minor release has tracked a pandoc API bump, so stay on the tested minor release.
• master → main: the branch is renamed on GitHub; this updates the workflow triggers and the links in README, pyproject and docs. The github-pages environment's deployment branch policy is moved to main too.
• LICENSE: copyright 2016-2026.
• Read the Docs restored (removed with Sphinx in Modernize: uv + pixi, filter-agnostic tests, Quarto docs, trusted publishing; v0.15.0 #70): .readthedocs.yaml installs pixi and renders the same Quarto site as GitHub Pages from the locked docs environment, then copies docs/_site to $READTHEDOCS_OUTPUT/html. Simulated in a clean clone with an empty $HOME: builds in ~30 s. README gets the Read the Docs badge back.
• Docs: quoting and escaping "" in a cell (closes Show escaping of quotes in example #67); csv-kwargs with quotechar: "'" for values in single quotes (closes Filter out single and double quotes from CSV #66); options come from the YAML block, not code block attributes (closes Clarify usage of parameters when using CSV from file #65, now tracked in Add other ways of injecting PanTableOption #31).
• CI matrix stratified: every environment (python and pandoc versions together) on linux-64, and each other platform once, the oldest environment on osx-64: 9 test jobs instead of 25.
• CI pins: pixi v0.81.0 (as in .readthedocs.yaml), with the pixi cache written only from main; every action pinned to a commit hash with its version in a comment, and Dependabot (already monthly, grouped) now waits 7 days after a release.