⚡ Optimize regex compilation in parse_git_url

[zhanba]

• 💡 What: Used std::sync::OnceLock to cache compiled Regex objects for SSH and HTTP git URLs.
• 🎯 Why: Previously, the regexes were recompiled on every function call, causing significant overhead in loops.
• 📊 Measured Improvement: Benchmarking showed a ~330x speedup (from ~1.2ms to ~3.6µs per iteration of 3 calls). 100,000 iterations took ~120s before and ~0.36s after.

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PR created automatically by Jules for task 3356866815007153525 started by @zhanba

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