[rcr, Flight] Add throwing RSC entrypoint for compiler-runtime

[eps1lon]

Summary

Alternate to #29057
Closes #31702

Adds a throwing stub to react-compiler-runtime and react/compiler-runtime if the react-server import condition is set that throw:

The React Compiler is currently not supported in a React Server environment.
Ensure that modules imported with a `react-server` condition are not compiled with the React Compiler.
Libraries should provide a dedicated `react-server` entrypoint that wasn't compiled with the React Compiler.

For react-compiler-runtime I had to add exports so this is technically a breaking change. Though I think we consider this only to be used as a Compiler target so any react-compiler-runtime/dist/* or react-compiler-runtime/src/* imports are already out of SemVer guarantees I guess?

How did you test this change?

Tested react/compiler-runtime with CSB artifacts merged with a local yarn build react-compiler-runtime.react-server,react/compiler-runtime

react-compiler-runtime I just manually checked that dist/ is as expected:

$ ls dist
index.d.ts                index.js.map              index.react-server.js.map
index.js                  index.react-server.js

[react-sizebot]

Comparing: b3a95ca...f26ce6a

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-stable/react-dom/cjs/react-dom.production.js	=	6.68 kB	6.68 kB	+0.16%	1.83 kB	1.83 kB
oss-stable/react-dom/cjs/react-dom-client.production.js	=	514.24 kB	514.24 kB	=	91.74 kB	91.74 kB
oss-experimental/react-dom/cjs/react-dom.production.js	=	6.69 kB	6.69 kB	+0.16%	1.83 kB	1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js	=	556.18 kB	556.18 kB	=	98.72 kB	98.72 kB
facebook-www/ReactDOM-prod.classic.js	=	595.79 kB	595.79 kB	=	104.85 kB	104.85 kB
facebook-www/ReactDOM-prod.modern.js	=	586.21 kB	586.21 kB	=	103.30 kB	103.30 kB
oss-experimental/react/cjs/react-compiler-runtime.react-server.development.js	+∞%	0.00 kB	0.64 kB	+∞%	0.00 kB	0.38 kB
oss-experimental/react/cjs/react-compiler-runtime.react-server.production.js	+∞%	0.00 kB	0.80 kB	+∞%	0.00 kB	0.46 kB
oss-experimental/react/compiler-runtime.react-server.js	+∞%	0.00 kB	0.44 kB	+∞%	0.00 kB	0.27 kB
oss-stable-semver/react/cjs/react-compiler-runtime.react-server.development.js	+∞%	0.00 kB	0.64 kB	+∞%	0.00 kB	0.38 kB
oss-stable-semver/react/cjs/react-compiler-runtime.react-server.production.js	+∞%	0.00 kB	0.80 kB	+∞%	0.00 kB	0.46 kB
oss-stable-semver/react/compiler-runtime.react-server.js	+∞%	0.00 kB	0.44 kB	+∞%	0.00 kB	0.27 kB
oss-stable/react/cjs/react-compiler-runtime.react-server.development.js	+∞%	0.00 kB	0.64 kB	+∞%	0.00 kB	0.38 kB
oss-stable/react/cjs/react-compiler-runtime.react-server.production.js	+∞%	0.00 kB	0.80 kB	+∞%	0.00 kB	0.46 kB
oss-stable/react/compiler-runtime.react-server.js	+∞%	0.00 kB	0.44 kB	+∞%	0.00 kB	0.27 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-experimental/react/cjs/react-compiler-runtime.react-server.development.js	+∞%	0.00 kB	0.64 kB	+∞%	0.00 kB	0.38 kB
oss-experimental/react/cjs/react-compiler-runtime.react-server.production.js	+∞%	0.00 kB	0.80 kB	+∞%	0.00 kB	0.46 kB
oss-experimental/react/compiler-runtime.react-server.js	+∞%	0.00 kB	0.44 kB	+∞%	0.00 kB	0.27 kB
oss-stable-semver/react/cjs/react-compiler-runtime.react-server.development.js	+∞%	0.00 kB	0.64 kB	+∞%	0.00 kB	0.38 kB
oss-stable-semver/react/cjs/react-compiler-runtime.react-server.production.js	+∞%	0.00 kB	0.80 kB	+∞%	0.00 kB	0.46 kB
oss-stable-semver/react/compiler-runtime.react-server.js	+∞%	0.00 kB	0.44 kB	+∞%	0.00 kB	0.27 kB
oss-stable/react/cjs/react-compiler-runtime.react-server.development.js	+∞%	0.00 kB	0.64 kB	+∞%	0.00 kB	0.38 kB
oss-stable/react/cjs/react-compiler-runtime.react-server.production.js	+∞%	0.00 kB	0.80 kB	+∞%	0.00 kB	0.46 kB
oss-stable/react/compiler-runtime.react-server.js	+∞%	0.00 kB	0.44 kB	+∞%	0.00 kB	0.27 kB

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