* chore: deps

- Replace .tool-versions and .nvmrc with .mise.toml
- Update CONTRIBUTING.md to reference mise

Co-Authored-By: Claude Opus 4.5 <[email protected]>

* chore: use lts/* for codeQuality CI job

Co-Authored-By: Claude Opus 4.5 <[email protected]>

* chore: test on Node 18, 20, 22, and 24

Co-Authored-By: Claude Opus 4.5 <[email protected]>

* chore: test on Node 18, 20, and 22

Node versions match Ubuntu LTS defaults:
- 18 = Ubuntu 24.04
- 20 = Ubuntu 25.x
- 22 = Ubuntu 26.04

Co-Authored-By: Claude Opus 4.5 <[email protected]>

* docs: remove nvm and asdf references, use mise only

Co-Authored-By: Claude Opus 4.5 <[email protected]>

* chore: pin vitest to ~4.0.18 to maintain Node 18 support

Using tilde (~) pins to 4.0.x, avoiding 4.1.x which introduced
rolldown and dropped Node 18 support.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

---------

Co-authored-by: Claude Opus 4.5 <[email protected]>

Single character emojis like 🛠 or 🗑 do not align with 2 character
emojis in the rendered menu.

Co-authored-by: Martin T. <[email protected]>

When adding VS16 to emojis with modifiers, VS16 can not be appended
at the end - this creates an invalid unicode symbol. VS16 must be
appended between emoji and modifiers.

Co-authored-by: Martin T. <[email protected]>

Reverts the push trigger from `master`-only back to `"**"` (all branches)
so contributors can see CI status on their fork branches before opening
a PR (see #3840).

To avoid duplicate CI runs when a maintainer pushes to a branch that has
an open PR (both push and pull_request triggers fire), each job now has
an `if` condition that skips pull_request runs from the same repository.
This is the same approach used by Vue.js (vuejs/core):

- Push events: always run
- Pull request events: only run if the PR is from a fork
- Schedule/workflow_dispatch: always run

This avoids the "50% broken CI" visual noise caused by concurrency
groups cancelling push runs, since GitHub shows cancelled jobs as
failures.

Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.4.1 to 3.4.2.
- [Commits](WebReflection/flatted@v3.4.1...v3.4.2)

---
updated-dependencies:
- dependency-name: flatted
  dependency-version: 3.4.2
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [handlebars](https://github.com/handlebars-lang/handlebars.js) from 4.7.8 to 4.7.9.
- [Release notes](https://github.com/handlebars-lang/handlebars.js/releases)
- [Changelog](https://github.com/handlebars-lang/handlebars.js/blob/v4.7.9/release-notes.md)
- [Commits](handlebars-lang/handlebars.js@v4.7.8...v4.7.9)

---
updated-dependencies:
- dependency-name: handlebars
  dependency-version: 4.7.9
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

This reverts commit a300d32.