Release v0.2.0-rc.7

[github-actions]

Release v0.2.0-rc.7

Auto-generated by the Prepare Release workflow.

What changed

• electron/package.json (+ lockfile) bumped to 0.2.0-rc.7 — this is the
  version electron-builder/electron-updater use, and release.yml refuses
  to build a tag that doesn't match it
• Pre-flight checks passed: uv lock --check, git deps pinned to SHAs/tags

Review checklist

• Version is correct in electron/package.json
• Manual checks from RELEASING.md done on a real machine (GPU path,
  distributed navigator, clean shutdown)
• CI passes

After merging

Tag the merge commit on main — the tag MUST be exactly v0.2.0-rc.7:

git fetch origin
git tag v0.2.0-rc.7 origin/main
git push origin v0.2.0-rc.7

The tag push triggers release.yml (3-platform build → draft release →
publish once all legs pass).