WIP: Route chunks

[markdalgleish]

https://github.com/remix-run/react-router/issues/11571

TODO:

• [x] Wire up to Vite plugin.
• [x] Handle TSX.
• [x] Ignore types in dependency analysis.
• [x] HMR
• [x] Caching
• [x] Refactor getRouteChunks into singular getRouteChunk to improve performance/caching
• [x] Ensure all route chunks are preloaded
• [x] Split shared import statements
• [x] Handle import side effects
• [x] Handle export { foo, bar }
• [x] Handle export { foo, bar as baz } from "./module"
• [x] Handle export * from "./module"
• [x] Handle export {}
• [x] Handle export const foo = ..., bar = ...;
• [x] Handle export const { foo } = ...; etc.
• [x] Harden export dependency analysis
• [x] Ensure consumers importing a route module doesn't result in duplicate code
• [x] Allow shared imports across chunks
• [x] Integration tests
• [x] Ensure HMR can handle addition of main chunk
• [x] Fix unused import removal in omitChunkedExports now that shared imports don't de-opt
• [x] Ensure chunked exports download first
• [x] Strict mode (build breaks on de-opt)
• [ ] Changeset
• [ ] Docs
• [ ] Tidy HMR snippets when route chunks disabled?
• [ ] Skip route chunk build entries when future flag disabled?
• [ ] Clean empty route chunks from build output?

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: d54536938e3813d362e07d133cea597ee7042a2b

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

This PR includes changesets to release 11 packages

Name	Type
@react-router/dev	Patch
react-router	Patch
@react-router/fs-routes	Patch
@react-router/remix-routes-option-adapter	Patch
@react-router/architect	Patch
@react-router/cloudflare	Patch
react-router-dom	Patch
@react-router/express	Patch
@react-router/node	Patch
@react-router/serve	Patch
create-react-router	Patch

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[github-actions[bot]]

🤖 Hello there,

We just published version 7.2.0-pre.0 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!

[github-actions[bot]]

🤖 Hello there,

We just published version 7.2.0 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!

[github-actions[bot]]

🤖 Hello there,

We just published version 7.3.0 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!