Restore Stringy fast paths and remove mutation-only regressions#55

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copilot/increase-mincoveredmsi-100

Commits on May 9, 2026

Commits on May 12, 2026

Commits on May 13, 2026

Commits on May 16, 2026

test: strengthen mutation guards

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test: scope empty-needle guard to php8

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fix: stabilize named format placeholders

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voku
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Commits on May 17, 2026

fix: restore legacy replace guard

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voku
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