refactor(path): normalize AbsolutePath strip_prefix

[wan9chi]

Motivation

The auto-output stack needs to compare runner-reported absolute paths with fspy paths even when Windows namespace prefixes differ. Keeping that OsStr-based prefix handling in fspy made the cache update fix duplicate platform-specific code.

This PR moves the shared prefix stripping into vite_path and folds that normalization into AbsolutePath::strip_prefix, so existing absolute-path prefix stripping handles Windows namespace prefixes consistently without adding a parallel AbsolutePath API.

[wan9chi]

• docs: consolidate runner-aware changelog entries #463
• test(e2e): verify Vite auto output restoration #462
• feat(cache): default outputs to automatic tracking #461
• feat(cache): add explicit auto output tracking #460
• feat(cache): honor runner ignored outputs #459
• feat(cache): honor runner ignored inputs #431
• refactor(path): normalize AbsolutePath strip_prefix #464 👈 (View in Graphite)
• main

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[wan9chi]

Merge activity

• Jun 14, 10:48 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jun 14, 10:48 PM UTC: @wan9chi merged this pull request with Graphite.