⚡ Bolt: [performance improvement] Pre-compute search strings to reduce GC pressure during filtering

[subsubl]

💡 What:
Updated pages/index.vue to use the transform option in useFetch to pre-compute and store lowercased search strings (_searchName, _searchDesc) directly on the fetched app objects. The filteredApps computed property now utilizes these pre-computed strings instead of allocating new strings and calling .toLowerCase() on the fly during the filtering loop. A critical learning entry regarding this pattern was also added to .jules/bolt.md.

🎯 Why:
In Nuxt 3/Vue 3 applications handling larger data sets, performing expensive operations like string allocations (.toLowerCase()) or complex parsing inside reactive computed loops (e.g., list filtering) leads to significant Garbage Collection (GC) pressure and main thread blocking on every keystroke that triggers reactivity.

📊 Impact:
Reduces the time complexity inside the reactive computed loop from O(N * string_allocations) to pure O(N) string comparisons. This dramatically improves the UI responsiveness and reduces main thread blocking during user input when searching through the app directory.

🔬 Measurement:

1. pnpm install
2. pnpm build (ensures the application builds correctly without syntax errors)
3. pnpm dev and verify search responsiveness in the UI is snappy and correct.

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PR created automatically by Jules for task 17884789438908899978 started by @subsubl

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