Fix extra list indentation when pasting from Word Desktop

[BryanValverdeU]

When pasting from Word Desktop, Word's global stylesheet includes margin declarations on p.MsoListParagraph, div.MsoListParagraph, and their CxSpFirst/Middle/Last variants. These global CSS rules were being applied as inline styles before RoosterJS processed the list structure, causing double-indentation on pasted lists.

• Add globalCssRules to BeforePasteEvent and promote CssRule to a public type in roosterjs-content-model-types
• Pass globalCssRules into the BeforePasteEvent from generatePasteOptionFromPlugins
• Add removeListParagraphMargins.ts which strips margin-* properties from global CSS rules targeting the Word list paragraph classes; mixed-selector rules are split so only the matching selectors lose their margins
• Wire removeListParagraphMargins into processPastedContentFromWordDesktop via a new globalCssRules parameter, passed through from PastePlugin

[Copilot]

Pull request overview

This PR addresses double-indentation on lists pasted from Word Desktop by preventing Word’s global CSS margins (for p/div.MsoListParagraph*) from being inlined before RoosterJS list processing.

Changes:

• Promotes CssRule to a public type and adds globalCssRules to BeforePasteEvent, then threads globalCssRules through the paste pipeline.
• Adds removeListParagraphMargins to strip margin* properties from Word list-paragraph global CSS rules (splitting mixed-selector rules as needed).
• Updates Word Desktop paste processing to apply the new global CSS rule sanitization and adds/updates unit tests.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/roosterjs-content-model-types/lib/index.ts	Re-exports CssRule from types entrypoint for consumers.
packages/roosterjs-content-model-types/lib/event/BeforePasteEvent.ts	Adds CssRule type + globalCssRules field on BeforePasteEvent.
packages/roosterjs-content-model-plugins/lib/paste/WordDesktop/removeListParagraphMargins.ts	New helper that removes margin properties from Word list-paragraph CSS rules.
packages/roosterjs-content-model-plugins/lib/paste/WordDesktop/processPastedContentFromWordDesktop.ts	Wires removeListParagraphMargins into Word Desktop paste handling via new globalCssRules param.
packages/roosterjs-content-model-plugins/lib/paste/PastePlugin.ts	Passes event.globalCssRules into Word Desktop processing.
packages/roosterjs-content-model-core/lib/command/paste/generatePasteOptionFromPlugins.ts	Populates BeforePasteEvent.globalCssRules from retrieveHtmlInfo.
packages/roosterjs-content-model-core/lib/command/paste/retrieveHtmlInfo.ts	Uses the shared CssRule type and returns extracted globalCssRules.
packages/roosterjs-content-model-core/lib/command/createModelFromHtml/convertInlineCss.ts	Switches to importing CssRule from roosterjs-content-model-types.
packages/roosterjs-content-model-core/test/command/paste/generatePasteOptionFromPluginsTest.ts	Updates expectations to include globalCssRules.
packages/roosterjs-content-model-plugins/test/paste/word/removeListParagraphMarginsTest.ts	Adds unit coverage for margin-stripping behavior (including mixed-selector splitting).
packages/roosterjs-content-model-plugins/test/paste/word/processPastedContentFromWordDesktopTest.ts	Updates test harness to pass CSS rules into Word Desktop processor.
CLAUDE.md	Adds reference to AGENTS.md.
AGENTS.md	Adds repo guidance (architecture + commands).

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

convertInlineCss.ts used to export a CssRule interface, but this change removes that export. There are existing imports (e.g. unit tests and potentially downstream internal code) that import CssRule from this module, which will now fail to compile. To preserve compatibility, re-export the new public CssRule type from roosterjs-content-model-types (type-only export) or update all import sites in the repo accordingly.

Suggested change

	import type { CssRule } from 'roosterjs-content-model-types';
	import type { CssRule } from 'roosterjs-content-model-types';
	export type { CssRule } from 'roosterjs-content-model-types';