Pre-combat-refactor: current state with PvP sync, boss setup scripts, combat fixes

gamedata/npcs.json

@@ -294,6 +294,31 @@
         "en": "The scavenger's struggle ends. Survival has no mercy.",
         "es": "El deseo de supervivencia del escavador se agota. La supervivencia no tiene misericordia."
       }
+    },
+    "test_boss": {
+      "npc_id": "test_boss",
+      "name": {
+        "en": "Level 50 Test Boss",
+        "es": "Jefe de Prueba Nivel 50"
+      },
+      "description": {
+        "en": "A huge terrifying monster.",
+        "es": "Un monstruo enorme y aterrador."
+      },
+      "emoji": "👹",
+      "hp_min": 1000,
+      "hp_max": 2000,
+      "damage_min": 25,
+      "damage_max": 65,
+      "defense": 15,
+      "xp_reward": 500,
+      "loot_table": [],
+      "flee_chance": 0.0,
+      "status_inflict_chance": 0.5,
+      "death_message": {
+        "en": "The boss is defeated.",
+        "es": "El jefe ha sido derrotado."
+      }
     }
   },
   "danger_levels": {