Made 75+ types internal (removed export keyword) across 24 files:
- Analytics event types (kept GameEventMap, GameEventName, GameEventProperties)
- Level config types (QuaternionArray, MaterialConfig, etc.)
- Ship types (SightConfig, InputState, etc.)
- Store state types (AuthState, GameConfigData, etc.)
- Various config interfaces
These types are still used internally but were never imported elsewhere.
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Co-Authored-By: Claude <noreply@anthropic.com>