feat(gameserver): rebuild replication around native actor and net-driver

[EisigesEis]

Summary

• Use native AActor fields for replication decisions, including roles, ownership, relevancy, dormancy, update frequency, priority, and movement.
• Integrate server transport with UIpNetDriver. Preserve on dispatch/flush.
• Cache replication candidates and rebuild change of world, level, actor count, or cache age
• (Non-native): Boost for new channels, connection-owned actors, movement, stale updates and urgent combat events (death/revive,
• Clean up stale actor, channel, connection and ownership state.
• Drops one core cpu by about 6-10% active hunt and down to 3-6% in idle ramsgate.

Testing

• Test replication in combat with min. two clients.
• (only briefly done) Monitor actor-channel, package-map, timeout and SerializeNewActor warnings

Future work

• Fix race condition wasting stim before server acknowledged death animation finish (better since boosted replication but still possible). Maybe needs pak mod with invuln frames on stim use.
• Check if stamina ticks happen in ramsgate on native replication fields and perhaps force disable them if still there.
• Update replication candidate cache incrementally on actor spawn/destruction
• Replace periodic actor count check with native lifecycle notifications if available
• Native cull distance
• More native fields if available
• Attempted rejoin on disconnect didn't go well.