Update seed data with boss battles and route changes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/app/seeds/data/ultra-moon.json

@@ -3966,6 +3966,14 @@
         "name": "Poni Plains (Center)",
         "order": 75,
         "encounters": [
+          {
+            "pokeapi_id": 732,
+            "pokemon_name": "Trumbeak",
+            "method": "walk",
+            "encounter_rate": 30,
+            "min_level": 54,
+            "max_level": 57
+          },
           {
             "pokeapi_id": 735,
             "pokemon_name": "Gumshoos",
@@ -3982,14 +3990,6 @@
             "min_level": 54,
             "max_level": 57
           },
-          {
-            "pokeapi_id": 732,
-            "pokemon_name": "Trumbeak",
-            "method": "walk",
-            "encounter_rate": 30,
-            "min_level": 54,
-            "max_level": 57
-          },
           {
             "pokeapi_id": 548,
             "pokemon_name": "Petilil",