adding weapon gen

app/game/templates/weapons/tuning.yaml

@@ -0,0 +1,12 @@
+# Level scaling and economy knobs
+balance:
+  base_damage_growth_per_level: 0.035
+  item_level_offset:
+    min: -3
+    max: +2
+  min_item_level: 1
+
+economy:
+  min_sell_floor: 8
+  overlevel_bonus_pct: 0.10
+  underlevel_elasticity: 1.35