perf(gameserver): profiling/diagnostics, frame pacing, memory

[EisigesEis]

Summary

• Native frame pacing for gameserver (steady 30Hz)
• GC at startup for unreferenced assets (disabled by default)
• Capped log files for gameservers and deploy (disabled by default)
• DeployServer dll hash validation

Testing

• Performance logs written on enabled
• Logs remain at size limit
• GC compare memory usage
• GC verify no crash over extended play

Future work

• Rotate old diagnostic file instead of stopping write.
• GC needs strong verification and is brittle. For instance apex destruction needed explicit guard for no crash. Rather move to pak stripping etc.
• Find hot spots in our code and theirs and optimize. Escalation hits 50% one core cpu on certain sections. Most likely unoptimized map and assets?