Concurrent Chunk Management Engine for Forge -The Twilight Forest fix

Fix the compatibility between c2mef and Twilight Forest, while fixing bugs and improving performance

Describes

Fix the compatibility between c2mef and Twilight Forest, while fixing bugs and improving performance

Fixed race condition in ConcurrentFlagMatrix.setif()
- Location: c2me_fixes_worldgen_threading_issues/.../ConcurrentFlagMatrix.java
- Issue: Race condition between read and write locks in setif() method
- Solution: Use write lock throughout the entire operation for atomicity
Prevented potential deadlocks in lock acquisition
- Location: c2me_base/.../AsyncCombinedLock.java, SchedulingAsyncCombinedLock.java
- Issue: Unordered lock acquisition could cause deadlocks
- Solution: Sort lock names to ensure consistent acquisition order
Fixed infinite recursion in error handling
- Location: AsyncCombinedLock.java, SchedulingAsyncCombinedLock.java
- Issue: Recursive calls in error path could cause stack overflow
- Solution: Throw IllegalStateException instead of recursing
Enhanced object pool safety
- Location: c2me_base/.../SimpleObjectPool.java
- Added: Null checks and object state cleanup before return to pool

Replaced printStackTrace() with proper logging
- Location: SchedulingAsyncCombinedLock.java, NeighborLockingTask.java, NoTickSystem.java, MixinChunkStatus.java, C2MEMod.java
- Changed: Use SLF4J Logger instead of stack trace printing / System.out.printf for better log management
Added ForkJoinPool compatibility
- Location: c2me_fixes_chunkio_threading_issues/.../SynchronizedCodec.java
- Added: ManagedBlocker support to prevent ForkJoinPool thread starvation

Aggressive spin-wait strategy for ultra-low latency
- Location: c2me_base/.../CFUtil.java
- Optimization: 10,000 pure spins + 1ns park to minimize thread context switching
- Effect: Minimized task completion wait time
High-throughput I/O thread optimization
- Location: c2me_rewrites_chunkio/.../C2MEStorageThread.java
- Optimization: 10,000 spins + 100ns park, optimized read request processing
- Effect: Maximized disk I/O throughput
Scheduler batch processing optimization
- Location: c2me_base/.../SchedulingManager.java
- Optimization: Removed unused timing code, immediate rescheduling in finally block, batch task scheduling
- Effect: Keep scheduler running at full capacity
Priority queue fast path
- Location: c2me_base/.../DynamicPriorityQueue.java
- Added: isEmpty() method for O(1) fast checking
- Effect: Reduced queue checking overhead
Optimized lock checking in NeighborLockingTask
- Location: c2me_base/.../NeighborLockingTask.java
- Optimization: Use indexed for loop instead of enhanced for loop, cache array length
- Effect: Reduced allocation and improved loop performance
Optimized priority distance calculation
- Location: c2me_base/.../SchedulingManager.java
- Optimization: Use long-based Chebyshev distance calculation instead of creating ChunkPos objects
- Effect: Reduced object allocation during priority updates

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