chore: update dependencies

Runtime:
- react-resizable 3.0.5 -> 3.1.3

Dev dependencies:
- @babel/cli, core, eslint-parser, plugin-transform-class-properties,
  preset-env, register: bump to latest 7.x
- @eslint/compat 1.x -> 2.x
- @eslint/js 9.0 -> 9.39.2
- @testing-library/react 16.1 -> 16.3.2
- @types/node 24.x -> 25.x
- @types/react 19.2.7 -> 19.2.14
- css-loader 7.1.2 -> 7.1.3
- ejs 3.x -> 4.x
- eslint 9.39.1 -> 9.39.2
- eslint-plugin-unicorn 62.x -> 63.x
- globals 16.x -> 17.x
- prettier 3.1 -> 3.8.1
- typescript-eslint 8.49 -> 8.55
- webpack 5.92 -> 5.105.2
- webpack-dev-server 5.2.2 -> 5.2.3

Skipped: fast-equals (CRA5 compat), react/react-dom (React 19 migration),
react-grab (semver break). All tests, lint, typecheck, and build pass.