Add named equipment rewards

data/scenarios/012_guandu_showdown.json

@@ -367,7 +367,7 @@
   ],
   "rewards": {
     "gold": 1900,
-    "items": ["bean", "wine", "imperial_seal"]
+    "items": ["bean", "wine", "imperial_seal", "yitian_sword"]
   },
   "post_battle_dialogue": [
     { "speaker": "Xiahou Dun", "text": "Yuan Shao's first great push is broken, but his camps still fill the horizon." },

data/scenarios/013_wuchao_raid.json

@@ -312,7 +312,7 @@
   ],
   "rewards": {
     "gold": 2100,
-    "items": ["bean", "wine", "war_drum"]
+    "items": ["bean", "wine", "war_drum", "black_tortoise_robe"]
   },
   "post_battle_dialogue": [
     { "speaker": "Xiahou Dun", "text": "Wuchao burns. Yuan Shao's army will wake hungry." },

data/scenarios/014_cangting_pursuit.json

@@ -344,7 +344,7 @@
   ],
   "rewards": {
     "gold": 2300,
-    "items": ["bean", "wine", "iron_armor"],
+    "items": ["bean", "wine", "iron_armor", "dragon_spear"],
     "join_officers": ["zhang_he"]
   },
   "post_battle_dialogue": [

data/scenarios/015_ye_campaign.json

@@ -351,7 +351,7 @@
   ],
   "rewards": {
     "gold": 2500,
-    "items": ["bean", "wine", "war_axe"]
+    "items": ["bean", "wine", "war_axe", "wind_chaser_bow"]
   },
   "post_battle_dialogue": [
     { "speaker": "Zhang He", "text": "Ye's outer defense is broken. The heirs will blame each other before they blame us." },