Build 0.7.7: Ballistics, Armor & Circular Barriers Update — War Room: Tactical Sandbox Steam update #1316042

\ ● Independent Sizing: added a "Projectile Size" slider (0% to 500%) to resize arrows or shells independently from the unit's scale. Fully supported by cloning, copy/paste, and save/load systems. ● Napoleonic Impact Fix: line-fire (type 4) shots now dissipate immediately upon hitting a target, preventing projectiles from "ghosting" through the victim. Missed shots still traverse the full range. ● Smoke Override: fixed rendering order for Napoleonic muzzle smoke; explosions and smoke now always appear above troop layers for better visual clarity. \ ● Custom Resistance: added an editable "Armor" field (0-100) under unit properties. This value acts as a percentage reduction for all incoming damage (e.g., 50 armor reduces received damage by 50%). ● Passive Block Chance: armor now also grants a small automatic chance to fully negate a hit (scales with armor, capped at 20%), showing a "BLOCKE...