Fix: Use NSRecursiveLock for ThreadSafeSingleton#4

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rickhohler merged 2 commits intomainfrom

fix/recursive-lock-singleton

Dec 13, 2025

Commits on Dec 13, 2025

Fix: Use NSRecursiveLock for ThreadSafeSingleton to prevent deadlocks in nested initialization
rickhohler
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Fix compiler warnings, improve tests, and update docs for v1.1.1
rickhohler
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