feat: knighted css imports.

[knightedcodemonkey]

No description provided.

[Copilot]

Pull request overview

Adds support for ?knighted-css (and &combined) query imports in workspace tabs so modules (or style tabs) can be imported with additional exports containing compiled CSS text (and optionally re-exporting the target module).

Changes:

• Extend style compilation output to include a per-style-tab compiled CSS map (styleCssByTabId) and pass it into virtual module planning.
• Add virtual module rewriting for ?knighted-css query imports, producing data-URL modules that export knightedCss / knightedCssModules (and optionally the target module exports via combined).
• Document the query import feature in the README and add Playwright coverage for query imports.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/modules/preview/render-runtime.js	Tracks compiled CSS per style tab and forwards it to the virtual module planner.
src/modules/preview-runtime/virtual-workspace-modules.js	Parses query flags and rewrites imports to generate ?knighted-css query modules (including combined).
README.md	Documents ?knighted-css and &combined workspace import patterns and expected exports.
playwright/rendering-modes/core.spec.ts	Adds E2E tests validating ?knighted-css behavior for module and style tab imports.

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