feat: export static diff renderer

[privatenumber]

Problem

Hunk can render unified patches as terminal-friendly ANSI text for constrained pager hosts, but that renderer is only available inside the CLI. An integration that already has a patch must either start the interactive application or reimplement the presentation layer.

For example, a terminal host can receive git diff output and need a colored stack or split view without taking over input or the alternate screen.

Changes

• Publish hunkdiff/static with renderStaticDiff(patch, options), returning Hunk's sanitized ANSI output without starting an interactive review.
• Keep the static API and pager fallback on one patch parsing and rendering path, including filename-based syntax detection.
• Package the Node-targeted entry and declarations, verify the built export during the pack check, and document its options.

[greptile-apps]

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[vercel]

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