Prepare Linaria 8 for WyW 2

[Anber]

Summary

• Updates Linaria and examples to the stable @wyw-in-js/*@2.0.0 toolchain.
• Prepares the Linaria 8 major release: public packages get a major changeset, private workspace packages stay out of release notes.
• Raises the supported runtime baseline to Node.js 22+ and updates CI/release/site workflows accordingly.
• Keeps Linaria processor static evaluation semantics aligned with WyW 2, where the default eval.strategy: "hybrid" resolves statically provable values before falling back to the evaluator.

Migration and docs

• Documents the evaluate -> eval.strategy migration, including hybrid, execute, and static modes.
• Calls out the CSS rule emission order compatibility risk for cascade ties with identical specificity.
• Updates README/configuration/how-it-works/migration docs away from alpha and evaluator-only wording.

CI fixes

• Adds the @emnapi/* peer packages required by the stable WyW/Oxc dependency graph under strict peer installs.
• Makes the website server build JSX-safe for the deprecated @wyw-in-js/babel-preset compatibility wrapper by running a JSX-only Babel pass before WyW extraction.
• Uses the explicit del-cli binary for website cleanup so Windows CI does not hit the shell built-in del prompt.
• Updates the Rollup example to avoid evaluator runner hangs by using static resolution plus an explicit static binding for the SVG URL import.
• Normalizes testkit generated-code snapshots across Unix/Windows final newline differences.

Validation

• pnpm install --frozen-lockfile --strict-peer-dependencies
• pnpm sp:check
• pnpm lint
• pnpm turbo run test:dts
• pnpm turbo run test
• pnpm --filter linaria-website build:server
• pnpm --filter rollup-example build
• Husky pre-commit also ran pnpm check:all, pnpm lint, and pnpm sp:check successfully.

@linaria/testkit still prints WyW runtime require fallback warnings during eval and Jest reports a forced worker exit after passing tests; those diagnostics do not fail the suite.

[changeset-bot]

🦋 Changeset detected

Latest commit: 6770d6f

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

This PR includes changesets to release 12 packages

Name	Type
@linaria/atomic	Major
@linaria/core	Major
@linaria/babel-plugin-interop	Major
linaria	Major
@linaria/postcss-linaria	Major
@linaria/react	Major
@linaria/server	Major
@linaria/stylelint-config-standard-linaria	Major
@linaria/stylelint	Major
@linaria/testkit	Patch
linaria-website	Patch
vpssr-linaria-solid-example	Patch

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