⚡ Bolt: [performance improvement] Add domain search caching

[yeboster]

💡 What: Implemented a module-scoped cache in DomainSearch.svelte to store search results for up to 5 minutes using a maximum capacity of 100 entries.
🎯 Why: Frequent typings and searches in the DomainSearch component often result in duplicated API calls for previously queried domains. Caching avoids these redundant network requests.
📊 Impact: Expected to significantly reduce network load during active typing or re-searching the same string. Re-renders on known items occur near-instantaneously.
🔬 Measurement: Verify using browser dev-tools network tab when re-typing a previously searched domain string. The second query will completely skip the API network call.

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PR created automatically by Jules for task 3933241653491141312 started by @yeboster

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Project	Deployment	Actions	Updated (UTC)
app	Ready	Preview, Comment	Mar 26, 2026 9:03pm