Cobblemon Info for REI / JEI / EMI

Fixed

• Fingerprint now hashes full serialized content instead of just key counts, preventing stale data when server datapacks modify spawn conditions without adding/removing species
• Data writes (local load, server apply, disconnect clear) are now synchronized via ReentrantLock, eliminating race conditions between async local load and server data arrival
• Async data loading uses a single-thread ExecutorService with cancellation support instead of spawning unbounded raw threads
• Server chunk delivery retries failed chunks up to 3 times (1-second delay between retries) instead of silently abandoning the entire sync
• Client-side chunk receiver now times out after 30 seconds of stalled transfer and falls back to local data