Fix #3292 Put B/I/U/S under hyperlink

[JiuqingSong]

Call segmentDecorator after formatters for B/I/U/S when handle text, so that B/I/U/S will be put inside <A>.

But keep formatters for SUB/SUP after segmentDecorator to avoid rendering a weird result of SUB/SUP with link.

Add/update test cases acccordingly.

[Copilot]

Pull request overview

Updates segment formatting application order during model-to-DOM conversion so that bold/italic/underline/strike are rendered inside hyperlinks, while keeping superscript/subscript behavior unchanged (applied outside hyperlinks) to avoid rendering issues.

Changes:

• Reorders segmentDecorator vs. segment format application in handleSegmentCommon so B/I/U/S wrappers end up under <a>.
• Splits superOrSubScript into its own format-applier category so it can be applied after hyperlink decoration.
• Updates/extends unit and end-to-end tests to reflect the new DOM structure and format-applier ordering.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/roosterjs-content-model-types/lib/contentModel/format/ContentModelFormatMap.ts	Adds new superOrSubScript category to the format-map type to enable separate applier ordering.
packages/roosterjs-content-model-dom/lib/modelToDom/utils/handleSegmentCommon.ts	Moves segmentDecorator after element-based B/I/U/S and applies superscript/subscript after decoration.
packages/roosterjs-content-model-dom/lib/formatHandlers/defaultFormatHandlers.ts	Splits element-based segment format keys into “size-neutral” vs. superOrSubScript, and wires new category into defaults.
packages/roosterjs-content-model-dom/test/modelToDom/utils/handleSegmentCommonTest.ts	Updates expected HTML nesting for bold-with-link scenario.
packages/roosterjs-content-model-dom/test/modelToDom/context/createModelToDomContextTest.ts	Updates format-applier index expectations due to reordered/split keys.
packages/roosterjs-content-model-dom/test/domToModel/context/createDomToModelContextTest.ts	Updates format-parser index expectations due to reordered/split keys.
packages/roosterjs-content-model-dom/test/endToEndTest.ts	Adds coverage for link + B/I/U and validates superscript/link output expectations.

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