Add configurable auto-rearm feature when duck is shot/befriended

- Add 'rearm_on_duck_shot' config option (defaults to true)
- Automatically rearm all disarmed players when any duck is successfully shot
- Also applies when ducks are successfully befriended
- Includes error handling and logging for the rearm process
- Improves game flow by reducing downtime for players who made wild shots

config.json

@@ -15,6 +15,7 @@
     "duck_spawn_min": 10,
     "duck_spawn_max": 30,
     "duck_timeout": 60,
-    "befriend_success_rate": 75
+    "befriend_success_rate": 75,
+    "rearm_on_duck_shot": true
     
 }