Add two map-only scenarios. A scenario now says where the starting settlements may go (SeaStart); SeaState.starts holds the starting islands, and the first-landing bonus skips all of them. Saves without starts fall back to the home island. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TWwLCrXa9aFVg8dZsCdLBZ