Render cached TOC field-result entries black like Word

[JSv4]

Summary

Docxodus renders cached Table of Contents field-result entries in the blue/underlined Hyperlink character style, but Microsoft Word prints those TOC entries in black.

This is the styling residual left after the geometry work tracked by #397. Microsoft Graph Word-reference capture in PR #423 now resolves the correctness question.

Reproduction

Render TestFiles/HC022-Table-Of-Contents.docx in paginated mode at 96 DPI and inspect the TOC-entry region (x=90..730, y=135..220).

The package's Hyperlink character style declares color 0563C1 and underline. Docxodus applies that appearance directly to the cached TOC result runs.

Evidence

Renderer	Blue pixels in TOC-entry region	TOC entry appearance
Microsoft Graph conversion	0	black
LibreOffice	0	black
Docxodus	4,890	blue/underlined

Word still renders genuinely blue content elsewhere in the same page (including the title/body headings), so this is not a grayscale or capture artifact. The result is specific to the TOC field-result entries.

The broader page comparisons measured Docxodus-versus-Word SSIM 0.95320 / ink F1 0.97023 and LibreOffice-versus-Word SSIM 0.96636 / ink F1 0.95808. Geometry-focused ink F1 does not represent the color error well; the exact blue-pixel measurement is the decisive signal.

Expected

Cached TOC field-result entries should use Word's field-result formatting behavior and render black for this document, despite the surrounding hyperlink markup/style definition.

Actual

Docxodus paints the entries with the package's blue, underlined Hyperlink style.

Acceptance criteria

• Reduce the behavior to a minimal generated TOC/cached-field fixture.
• Add a regression that distinguishes TOC field-result styling from an ordinary hyperlink using the same character style.
• Match Word's black TOC result text without regressing ordinary hyperlinks.
• Rerun the tracked fields-and-tabs visual-parity case and record the result.

Provenance

Microsoft Graph conversion reference: Microsoft Graph v1.0 DOCX-to-PDF conversion, rasterized at 96 DPI. The reproducible capture and measurement metadata are being added by PR #423; no Word artifact needs to be committed.