feat(DevServer): batch bundles & run them asynchronously

[paperdave]

What does this PR do?

Dev:

• Remove waitFor calls, fixing a crash. there is now a "current bundle" and a bundle queue, which hold references to the requests pending on them. once the current bundle is finished, the "next bundle" is drained. the cool part of this is every bundle attempted is combined, deduplicated, and run all at once.
• Document the atomics hell
• Closes bake: assertion failure with invalid cache key #14913
• Enable console buffering after printing reload message
• Print a log when routes successfully bundle
• Timer for reloads starts much earlier (timer is started on the watch thread); have not tested release build but if we continue showing 1ms then that is much more impressive than 1ms on previous branch.
• Fix most but not all of the CSS reloading issues
• Some usability bugs while testing

Prod:

• Using the same entry point in a client and server part will bundle properly.

All:

• Fixes parsing "style" from framework api

React integration:

• Fix flash of unstyled content
• Support view transitions
• Back button uses an in memory cache of the page to avoid re-fetching

Non-bake

• Bun.build supports plugins with loader: 'object'

[robobun]

❌ @paperdave, your commit 32dd4c6 has 15 failures in #6873:

test/regression/issue/09041.test.ts - 1 failing on 🐧 3.20 x64-baseline

test/cli/hot/hot.test.ts - timeout on 🐧 3.20 x64-baseline

test/cli/hot/hot.test.ts - timeout on 🐧 3.20 x64

test/integration/next-pages/test/dev-server.test.ts - 1 failing on 🐧 3.20 x64-baseline

test/integration/next-pages/test/dev-server.test.ts - 1 failing on 🐧 3.20 x64

test/js/node/test/parallel/worker-nested-uncaught.test.js - segmentation fault on 🐧 3.20 aarch64

test/js/node/test/parallel/worker-nested-uncaught.test.js - segmentation fault on 🐧 3.20 x64-baseline

test/js/node/test/parallel/worker-nested-uncaught.test.js - segmentation fault on 🐧 3.20 x64

test/v8/v8.test.ts - 22 failing on 🐧 3.20 aarch64

test/v8/v8.test.ts - 22 failing on 🐧 3.20 x64

test/v8/v8.test.ts - 22 failing on 🐧 3.20 x64-baseline

test/js/node/test/parallel/fs-watch-recursive-linux-parallel-remove.test.js - 1 failing on 🐧 22.04 x64-baseline

test/js/node/test/parallel/fs-watch-recursive-linux-parallel-remove.test.js - 1 failing on 🐧 22.04 x64

test/js/node/test/parallel/fs-watch-recursive-linux-parallel-remove.test.js - 1 failing on 🐧 3.20 aarch64

test/js/node/test/parallel/fs-watch-recursive-linux-parallel-remove.test.js - 1 failing on 🐧 3.20 x64-baseline

test/js/node/test/parallel/fs-watch-recursive-linux-parallel-remove.test.js - 1 failing on 🐧 3.20 x64

test/js/node/child_process/child_process.test.ts - 1 failing on 🐧 3.20 aarch64

test/js/node/child_process/child_process.test.ts - 1 failing on 🐧 3.20 x64-baseline

test/js/node/child_process/child_process.test.ts - 1 failing on 🐧 3.20 x64

test/js/bun/http/serve.test.ts - 1 failing on 🍎 14 x64

test/js/bun/http/serve.test.ts - segmentation fault on 🐧 3.20 aarch64

test/js/bun/http/serve.test.ts - segmentation fault on 🐧 3.20 x64

test/js/bun/http/serve.test.ts - segmentation fault on 🐧 3.20 x64-baseline

test/js/node/watch/fs.watch.test.ts - 4 failing on 🍎 14 aarch64

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 22.04 aarch64

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 20.04 x64

test/integration/next-pages/test/next-build.test.ts - 1 failing on 🐧 22.04 x64-baseline

test/js/node/test/parallel/fs-watch-recursive-assert-leaks.test.js - 1 failing on 🍎 14 aarch64

test/js/node/test/parallel/fs-watch-recursive-add-file-to-existing-subfolder.test.js - 1 failing on 🍎 14 aarch64

test/js/node/test/parallel/fs-watch-encoding.test.js - 2 failing on 🍎 14 aarch64

test/js/node/test/parallel/child-process-exec-timeout-kill.test.js - 1 failing on 🍎 14 aarch64

test/js/web/fetch/fetch.tls.test.ts - 1 failing on 🍎 13 aarch64

test/js/web/fetch/fetch.tls.test.ts - 1 failing on 🍎 14 aarch64

[dylan-conway]

JSError!JSValue return type