NativeScript 8.2 upgrade failed, throws build errors and npm installs fail

Start by reproducing npm install and the NativeScript build with the reported NativeScript, Angular, Node, and npm versions. Trace the import chain from src/app/shared/services/analytics.service.ts through @nativescript/firebase-crashlytics and inspect the linked full build log for the dependency failure. Done means the reported project installs and builds without the shown module-resolution errors.

Environment
✔ Component nativescript has 8.2.3 version and is up to date.
✔ Component @nativescript/core has 8.2.1 version and is up to date.
✔ Component @nativescript/ios has 8.2.3 version and is up to date.
✔ Component @nativescript/android has 8.2.2 version and is up to date.

• iOS Runtime: 15.4
• NativeScript-Angular: 13.0.0
• Angular: 13.2.0

Describe the bug
After following this guide to upgrade to NativeScript 8.2.0 from 8.1.5, now when I run "npm install" it gives these warnings:

MacBook-Pro:UI justintoth$ npm install
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@eslint/eslintrc@1.2.1',
npm WARN EBADENGINE   required: { node: '^12.22.0 || ^14.17.0 || >=16.0.0' },
npm WARN EBADENGINE   current: { node: 'v14.16.0', npm: '8.3.1' }
npm WARN EBADENGINE }
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: '@typescript-eslint/eslint-plugin@5.17.0',
npm WARN EBADENGINE   required: { node: '^12.22.0 || ^14.17.0 || >=16.0.0' },
npm WARN EBADENGINE   current: { node: 'v14.16.0', npm: '8.3.1' }
npm WARN EBADENGINE }
npm WARN EBADENGINE ...

Worse, when trying to build it throws errors about "fs":

Module not found: Error: Can't resolve 'fs' in '/Users/justintoth/Dev/housters/UI/node_modules/source-map/lib'
 @ ./node_modules/source-map/lib/source-map-consumer.js 17:17-44
 @ ./node_modules/source-map/source-map.js 7:0-82
 @ ./node_modules/stacktrace-gps/stacktrace-gps.js
 @ ./node_modules/stacktrace-js/stacktrace.js
 @ ./node_modules/@nativescript/firebase-crashlytics/index.ios.js 14:0-39 73:12-32
 @ ./src/app/shared/services/analytics.service.ts 4:0-44
 @ ./src/app/components/public/signin/signin.component.ts 9:0-78 13:0-65 126:116-135 177:37-53
 @ ./src/app/app.module.ts 15:0-73
 @ ./src/main.ts 4:0-45 6:69-78

ERROR in ./node_modules/source-map/lib/read-wasm.js 21:15-30
Module not found: Error: Can't resolve 'path' in '/Users/justintoth/Dev/housters/UI/node_modules/source-map/lib'...

Here is the full build log: https://gist.github.com/justintoth/d8fde7b79e45df5f2f3310cf56d04edd