feat(dev): unstable dev server improvements

[pcattori]

Fixes #5834 #5663 #5348 #5492

• Fix for async error handling in compiler
• Push-based app server synchronization (instead of polling)
• App server as a managed subprocess

TODO

• export ping function from @remix-run/dev that uses REMIX_DEV_HTTP_PORT env var to send updated build hash to dev server, then call that from app server
• handle babel transform error in browser-route-module plugin
• get HMR test passing (call ping in server from test fixture)
• options to specify scheme/host/port for ping
• changeset

Follow on work

• fix(dev): handle rebuilds that start before previous one finished #6155
• fix(dev): get dependencies bin path for any package manager #6157
• fix(dev): define process.env.REMIX_DEV_HTTP_PORT in server build #6158
• fix(dev): export devReady from runtime packages #6159
• fix(dev): handle new routes gracefully #6165
• fix(dev): statically serve built assets from dev server #6173
  • only wait for app server for HDR, but not for HMR?
• fix(dev): reliably detect path to bin for deps #6175
• fix(dev): force NODE_ENV=development for dev server #6176
• feat(dev): dev command defaults to remix-serve #6177
• feat(serve): call devReady for dev server compatibility #6188
• fix(dev): tracking of prev build even when rebuilds are interrupted #6189
• docs(unstable_dev): add docs for setting up new dev server #6206
• Consistent log styles
• Debug log for dev server (including ports used)

[changeset-bot]

🦋 Changeset detected

Latest commit: a63e41c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 18 packages

Name	Type
@remix-run/dev	Minor
@remix-run/server-runtime	Minor
create-remix	Minor
@remix-run/css-bundle	Minor
@remix-run/cloudflare	Minor
@remix-run/deno	Minor
@remix-run/node	Minor
@remix-run/react	Minor
@remix-run/cloudflare-pages	Minor
@remix-run/cloudflare-workers	Minor
@remix-run/architect	Minor
@remix-run/express	Minor
@remix-run/netlify	Minor
@remix-run/serve	Minor
@remix-run/testing	Minor
@remix-run/vercel	Minor
remix	Minor
@remix-run/eslint-config	Minor

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[github-actions]

🤖 Hello there,

We just published version v0.0.0-nightly-6295eb6-20230425 which includes this pull request. If you'd like to take it for a test run please try it out and let us know what you think!

Thanks!