[Andreas-Garcia]

Merges release/15.0.0 back into develop alongside the main PR.

[Copilot]

🟢 Approval recommended

The diff is limited to mechanical version bumps and a CHANGELOG update whose non-trivial entry relocation I verified as correct against the published v14.0.0 tag and the feature merge timeline.

No open issues 🎉

What changed in this PR

This is a machine-generated release back-merge PR that syncs release/15.0.0 into develop alongside the companion PR into main. It performs the v14.0.0 → v15.0.0 version bump and finalizes the CHANGELOG for the 15.0.0 release, whose sole user-facing change is the new TrackNounProvider / useTrackNoun() feature (PR #313, a breaking change that moves the track/song noun out of hardcoded UI strings and into app-supplied context).

A notable detail: the CHANGELOG diff relocates the three TrackNoun bullets from the [14.0.0] section into a new [15.0.0] section. I verified this is correct — at the published v14.0.0 tag the [14.0.0] section never contained those entries, and the TrackNoun feature (#313) merged into develop at 19:02 on 2026-10-26, after v14.0.0 published at 16:30. The entries had been mistakenly logged under [14.0.0] instead of [Unreleased], and this PR restores [14.0.0] to match what actually shipped.

Changes:

• Bump @behindthemusictree/app-kit and @behindthemusictree/app-kit-ui to 15.0.0, and the app-kit-ui peer dependency to ^15.0.0.
• Add a [15.0.0] - 2026-10-26 CHANGELOG section (Added: TrackNoun provider/hook + capitalize; Breaking: UI noun injection, requires genre-tree-view 3.0.0).
• Remove the same TrackNoun bullets that had been misfiled under [14.0.0].

File	Description
packages/​app-kit/​package.json	Version bump 14.0.0 → 15.0.0 (correct, consistent).
packages/​app-kit-ui/​package.json	Version bump 14.0.0 → 15.0.0 and peer dep @behindthemusictree/app-kit → ^15.0.0 (lockstep, correct).
CHANGELOG.md	Adds [15.0.0] section and relocates misfiled TrackNoun entries out of [14.0.0]; verified correct against the published v14.0.0 tag and the #313 merge timeline.

I verified version consistency across both packages and the peer dependency, confirmed the release date (2026-10-26) is today and not in the future, confirmed the major bump is appropriate for the breaking change, and sanity-checked that the advertised @behindthemusictree/app-kit/track-noun subpath export is fully wired (barrel, root barrel, tsup entry, and package.json exports map). No issues found.

_{Review effort: Balanced}