Fixed the Guild Trader panel displaying only five trader candidates.
Fixed Copy Settings from Previous Town in the Auto Trade panel.
Fixed ships not appearing in the Shipyard construction screen.
Fixed Market trade popups and drag-trade amount calculations.
Fixed several UI icons and fallback assets missing in Steam builds.
Improved consistency between Unity Play Mode and the Steam build.
Fixed broken city prefab references for Danzig and Hamburg.
Added additional build-time validation to catch missing assets and broken references.
Improved Shipyard code structure in preparation for future ship upgrades.
Various UI reliability and stability improvements.