chore(many): Upgrade nx

[dschom]

Because

• Now that we are node 24 we can upgrade
• A new version of NX has been released
• We want to improve caching

This pull request

• Upgrades NX, Next, Jest, and other support deps
• Updates deprecated Jest assertions
• Fixes a couple caching issues
• Sets robust nx defaults that work well with our project
• Removes NX commands from package.json 'scripts'. They are no longer permitted by nx.

Issue that this pull request solves

Closes: FXA-14141

Checklist

Put an x in the boxes that apply

• My commit is GPG signed.
• If applicable, I have modified or added tests which pass locally.
• I have added necessary documentation (if appropriate).
• I have verified that my changes render correctly in RTL (if appropriate).
• I have manually reviewed all AI generated code.

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• Key files/areas to focus on:
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Screenshots (Optional)

Please attach the screenshots of the changes made in case of change in user interface.

Other information (Optional)

There are some commands that now just have exit 0 in them. This is because dependencies are now managed by NX. This means you need use NX to run certain common commands. You can still run the 'sub' commands with yarn workspace directly.

For example, yarn workspace fxa-settings build is now nx run fxa-settings:build OR yarn workspace fxa-settings:build-ts && yarn workspace fxa-settings build-css.

[vbudhram]

@dschom I tested this locally and it runs fine. There does not seem to be a big increase in start up speed? Just the couple questions otw probably good to merge.

###########################################################
#  ✅ Services ready in 123s (infrastructure was started earlier)
###########################################################

  📍 Verifying started services:
     fxa-content-server   http://localhost:3030  OK
     fxa-profile-server   http://localhost:1111/__heartbeat__  OK
     fxa-auth-server      http://localhost:9000/__heartbeat__  OK
     fxa-settings         http://localhost:3000/settings/static/js/bundle.js  OK
     123done              http://localhost:8080  OK

  All started services responded.
  💡 Run 'yarn ports' to see all service ports
###########################################################

[vbudhram]

Is this a stray file?

[dschom]

It was auto-generated by nx. But I don't think we need it. I'll remove it.

[vbudhram]

build-copy-assets depends on build-ts so it I think it would lose the fast part of reading from source?

[dschom]

Good catch. I'll clean this up.

[vbudhram]

This was called out in AI review, build-static should depend on build-l10n otherwise it could not bundle the ftl files.

[nshirley]

Leaving a comment here from a slack thread, perhaps this fix can be rolled into this PR:

The Start services for playwright tests step jumped from ~2m to ~6.5m because start-services.sh uses -t build --skip-nx-cache. That flag was added in FXA-14006 after #20688 dropped build from the start target. A plain cache hit left content-server's gitignored app/dist bundle missing, so it hung at boot. To restore fast cached builds we would need to declare app/dist as an nx build output for content-server (it's gitignored + not in the defaults), then drop --skip-nx-cache from the start-services.sh.

But, maybe there's a better way to handle this? The short version is just, content-server fails to boot because of an incomplete cache, forcing a full rebuild of the stack for functional-tests.