fix(release): revert packages to 0.1.0 and fix CI to stay in 0.x

[Copilot]

v1.0.0 was yanked from PyPI but CI kept re-releasing in 1.x because python-semantic-release derives the current version from git tags — the v1.0.0 tag still existed, so every subsequent commit on main would produce v1.0.1, v1.1.0, etc.

Changes

• All three pyproject.toml files: version = "1.0.0" → "0.1.0"
• CHANGELOG.md: rename v1.0.0 entry to v0.1.0
• release.yml: add a one-time idempotent tag migration step that runs before semantic-release version:

- name: Replace yanked v1.0.0 tag with v0.1.0
  run: |
    if git ls-remote --tags origin refs/tags/v1.0.0 | grep -q .; then
      git fetch origin refs/tags/v1.0.0:refs/tags/v1.0.0
      TAGGED_COMMIT=$(git rev-parse v1.0.0^{commit})
      git push origin :refs/tags/v1.0.0
      git tag v0.1.0 "$TAGGED_COMMIT"
      git push origin v0.1.0
    fi

On first run: deletes v1.0.0, creates v0.1.0 at the same commit — semantic-release then sees v0.1.0 as current and continues from there. On subsequent runs: v1.0.0 is absent so the block is a no-op.

The existing major_on_zero = false in the semantic-release config already guards against any future accidental jump to 1.x.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/graphql
  • Triggering command: /usr/bin/gh gh auth status (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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