fix: hydration mismatch, production Dockerfile, SSR localStorage guard, SpellsTab/SkillsTab/debug store migrations

src/components/game/tabs/index.ts

@@ -5,7 +5,8 @@ export { CraftingTab } from './CraftingTab';
 export { SpireTab } from './SpireTab';
 export { SpellsTab } from './SpellsTab';
 export { LabTab } from './LabTab';
-export { SkillsTab } from './SkillsTab';
+// SkillsTab is now exported from src/components/game/index.ts
+// export { SkillsTab } from './SkillsTab';
 export { StatsTab } from './StatsTab';
 export { EquipmentTab } from './EquipmentTab';
 export { AttunementsTab } from './AttunementsTab';