* ci: publish to PyPI on version tags
Add .github/workflows/publish.yml: pushing a PEP 440 tag (v0.3.0.dev2,
v0.3.0, v0.3.0rc1, …) derives the version from the tag, injects it into
pyproject.toml, builds, publishes to PyPI via OIDC trusted publishing
(no stored token), and creates a GitHub Release with generated notes.
Mirrors the OpenKnowledgeBase publish flow, but keeps poetry-core as the
build backend and injects the version in CI rather than switching to
VCS-driven versioning, so contributors' local builds are unaffected.
Requires one-time setup: a PyPI Trusted Publisher on the pageindex project
(repo VectifyAI/PageIndex, workflow publish.yml, environment pypi) and a
GitHub Environment named pypi.
Claude-Session: https://claude.ai/code/session_01Kx5DgKbhK1N8autqXH8SmS
* ci: bump publish workflow actions to Node 24 releases
checkout v4.1.7 -> v7.0.0, setup-python v5.2.0 -> v6.3.0,
action-gh-release v3.0.0 -> v3.0.1 (all Node 24, clearing the Node 20
deprecation warning). gh-action-pypi-publish is already latest (v1.14.0,
Docker-based). Refs stay pinned to commit SHAs.
Claude-Session: https://claude.ai/code/session_01Kx5DgKbhK1N8autqXH8SmS