Performance improvements and dedicated-server connection fix

Now also available on Android. -> Playstore: Tidewrack

This update improves raft and coastal-island processing and fixes a version-check error when connecting to dedicated servers.

• Reduced repeated calculations for raft geometry, bounds and wake effects, especially on larger rafts.
• Moved more coastal terrain and grass preparation into background work to reduce work on the main thread.
• Improved terrain collision preparation without reducing terrain detail.
• Faster repeated navigation calculations for the Coastal Journal.
• Fixed a client version mismatch that could prevent connections to dedicated servers even with both games updated.

Existing saves are preserved. No world or player reset is required. Solo play, co-op and crossplay remain supported. Cross-save remains unavailable.