Easy Mode, Onboarding & Combat Polish Update — Lunaris Steam update #635311

New: Run Difficulty After Play, you now choose Easy or Normal before starting a run. Easy: enemies have 75% HP and 75% damage. On the final wave there is no overtime — when the timer ends, the run completes and you warp out. Normal: full enemy stats and overtime on the final wave for higher scores. Complete a run on Easy to unlock Normal as the main challenge mode. Easy is marked as Recommended for new players until you’ve cleared it once. New: Quick Start Guide Before your first runs, a 3-step intro explains the loop: fight waves → shop between waves → chase records & meta progression. Guide cards: DESTROY, LEVEL UP, SET A RECORD. Can be turned off in game hint settings if you already know the basics. Main Menu New difficulty screen with dedicated Easy / Normal icons. UI click sounds added to the new start flow. Improved layout for difficulty cards: clearer stats, spacing, and readabili...