⚡ Bolt: Optimize compareVersions single-pass segment parsing & reuse Intl.Collator in mod sorting

[TheDragonSoft]

⚡ Bolt: Optimize compareVersions single-pass segment parsing & reuse Intl.Collator in mod sorting

💡 What:

1. Refactored compareVersions in src/lib/format.ts to perform a single-pass index scan with numeric segment parsing, eliminating split(".") and map(...) array allocations on every comparison.
2. Reused a single module-level Intl.Collator instance in src/pages/InstalledPage.tsx instead of invoking a.name.localeCompare(b.name, undefined, { sensitivity: "base" }) on every string comparison during list sorting.

🎯 Why:
Version comparisons and list sorting occur frequently when displaying installed mods, version list options, update checks, and changelogs. Repeated array splits and Intl.Collator object allocations created unnecessary main-thread garbage collection pressure during list operations.

📊 Impact:

• Zero array allocations per compareVersions call.
• Zero Intl.Collator object allocations per string comparison in list sorting.
• Faster list sorting and comparison times, especially when sorting larger mod lists or comparing version sets.

🔬 Measurement:
Verified with TypeScript compilation & Vite build (pnpm run build) and unit assertions for version comparisons.

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PR created automatically by Jules for task 10466871938771964912 started by @TheDragonSoft

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