fix(deps): repin babel/jest to compatible majors, drop unused ts-jest

.github/website/src/scripts/header.js

@@ -1,4 +1,3 @@
-/* global window, document, IntersectionObserver, CustomEvent, localStorage, navigator */
 /* header.js — burger, drawer, dropdowns, scroll-shrink */
 
 document.addEventListener("DOMContentLoaded", () => {

.github/website/src/scripts/search.js

@@ -1,4 +1,3 @@
-/* global window, document, requestAnimationFrame */
 /* search.js — Search palette controller */
 
 import { rankSearchItems, getSearchTokens } from "./search-utils.js";

.github/website/src/scripts/theme-toggle.js

@@ -1,4 +1,3 @@
-/* global window, document, localStorage, CustomEvent, navigator */
 /* theme-toggle.js
    Handles all .theme-toggle-btn buttons on the page.
    Moon = currently light mode (click to go dark)

CHANGELOG.md

@@ -62,7 +62,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-- **Lint Was Blocked by Missing Globals, Not by Code** — eslint reported 1,908 errors across 191 files on `develop`, blocking both `linting.yml` and `testing.yml` (the latter runs `npm run lint:js` as its first step and never reached the tests). 1,687 of those were `no-undef` and came down to just 25 identifiers: the `**/*.cjs` block in `eslint.config.cjs` carried `languageOptions` with only `parserOptions` and no `globals` at all, and that glob covers every `.test.cjs` in the repository, so `describe`, `it`, `expect`, `console` and `process` were undefined there. The Node, CommonJS and Jest global sets are now declared once and shared rather than written out three times, the figma glob matches the `skills/local/plugin-provided` layout it previously missed, `scripts/dashboard` is treated as the browser bundle it is, and the eight vendored copies of `plugin-api-standalone.d.ts` are ignored as third-party typings (one copy already was). Errors drop from 1,908 across 191 files to 47 across 31, with all parse and `no-redeclare` errors cleared.
+- **Jest Test Run Blocked by Mismatched Babel/Jest Majors** — `npm run test:js` failed before any test executed: `@babel/core` and its presets/plugins were pinned to the brand-new Babel 8 line (`8.0.1`/`8.0.2`, released 2026-06-16 and ESM-only) while `@babel/runtime` stayed on `^7.29.7`, and separately `@types/jest`/`ts-jest` sat on the Jest 29 line while `jest`/`babel-jest`/`jest-environment-jsdom` were on 30.x — two independent major-version splits in the same toolchain. `ts-jest` was never actually wired into `.jest.config.cjs` (its own header comment says "Uses Babel for transforming JS/TS; no ts-jest required") and is removed as dead weight rather than upgraded. Every `@babel/*` package that had moved to Babel 8 (`@babel/core`, `@babel/preset-env`, `@babel/preset-react`, `@babel/preset-typescript`, `@babel/plugin-transform-class-properties`, `@babel/plugin-transform-object-rest-spread`, `@babel/plugin-transform-runtime`, in both root `package.json` and the `overrides` block) is re-pinned to the latest Babel 7 line, `7.29.7`, matching `@babel/runtime` and avoiding Babel 8's ESM-only breaking change against a repo built entirely on `.cjs` config files; `@babel/plugin-syntax-import-meta` was never on Babel 8 and stays at its existing `7.10.4`; `jest` and `jest-environment-jsdom` are bumped to the matching latest `30.5.1` patch alongside the already-current `babel-jest@30.5.1`; `@types/jest` is bumped to `30.0.0` to match. The suite now runs to completion (4317/4599 tests passing); the remaining failures are pre-existing test debt (a missing `@actions/github` module in one suite, a `minimatch` import-shape bug, stale assertions) unrelated to the transform layer.
+
+- **Lint Was Blocked by Missing Globals, Not by Code** — eslint reported 1,908 errors across 191 files on `develop`, blocking both `linting.yml` and `testing.yml` (the latter runs `npm run lint:js` as its first step and never reached the tests). 1,687 of those were `no-undef` and came down to just 25 identifiers: the `**/*.cjs` block in `eslint.config.cjs` carried `languageOptions` with only `parserOptions` and no `globals` at all, and that glob covers every `.test.cjs` in the repository, so `describe`, `it`, `expect`, `console` and `process` were undefined there. The Node, CommonJS and Jest global sets are now declared once and shared rather than written out three times, the figma glob matches the `skills/local/plugin-provided` layout it previously missed, `scripts/dashboard` is treated as the browser bundle it is, and the eight vendored copies of `plugin-api-standalone.d.ts` are ignored as third-party typings (one copy already was). Errors drop from 1,908 across 191 files to 47 across 31, with all parse and `no-redeclare` errors cleared. The browser-scripts glob missed the repo's nested `.github/website/src/scripts/**` copy (only `website/src/scripts/**` matched), leaving `fetch` undefined in `theme-toggle.js` there; the glob now covers both. That copy's `header.js` and `search.js` still carried their own `/* global */` comments for identifiers the glob now declares (`IntersectionObserver`, `requestAnimationFrame`, etc.), which turned into `no-redeclare` errors the moment the glob widened to cover them; those comments are removed too, alongside `theme-toggle.js`'s.
 
 - **Bugs the Lint Gap Was Hiding** — five scripts called a bare `load(...)` while importing `* as yaml from "js-yaml"`, so every one of those calls would have thrown `ReferenceError: load is not defined` at runtime; they now call `yaml.load`. Two release e2e scenarios had an unquoted `CHANGELOG.md:` object key, a syntax error meaning those files had never parsed. `.markdownlint-cli2.config.cjs` declared `MD024` twice, with JS silently discarding the earlier value. Also removed 12 `/* global */` and 7 `/* eslint-env */` comments that only restated globals the config now provides; eslint-env comments are unsupported in ESLint 9 and were themselves parse errors.
 

eslint.config.cjs

@@ -244,7 +244,12 @@ module.exports = [
   // Browser-based JavaScript files (website scripts)
   {
     // scripts/dashboard is a browser bundle too, not a Node script.
-    files: ["website/src/scripts/**/*.js", "scripts/dashboard/**/*.js"],
+    // The .github/-prefixed path covers this repo's own nested copy of the website.
+    files: [
+      "website/src/scripts/**/*.js",
+      ".github/website/src/scripts/**/*.js",
+      "scripts/dashboard/**/*.js",
+    ],
     languageOptions: {
       parserOptions: {
         ecmaVersion: 2024,