0.5.0

Added

• aiologic.CapacityLimiter as a primitive similar to aiologic.Semaphore, but with ownership checking on release like aiologic.Lock (thread-aware alternative to anyio.CapacityLimiter).
• aiologic.Latch as a single-use barrier, useful for ensuring that no thread or task sleeps after passing the barrier (inspired by std::latch from C++20).
• force parameter for async checkpoints (allowing to ignore context variables and environment variables).