Add per-condition encounter rates to seed data (#26)

Co-authored-by: Julian Tabel <juliantabel.jt@gmail.com>
Co-committed-by: Julian Tabel <juliantabel.jt@gmail.com>

tools/import-pokedb/import_pokedb/models.py

@@ -13,16 +13,22 @@ class Encounter:
     encounter_rate: int
     min_level: int
     max_level: int
+    conditions: dict[str, int] | None = None
 
     def to_dict(self) -> dict:
-        return {
+        d: dict = {
             "pokeapi_id": self.pokeapi_id,
             "pokemon_name": self.pokemon_name,
             "method": self.method,
-            "encounter_rate": self.encounter_rate,
             "min_level": self.min_level,
             "max_level": self.max_level,
         }
+        if self.conditions:
+            d["encounter_rate"] = None
+            d["conditions"] = self.conditions
+        else:
+            d["encounter_rate"] = self.encounter_rate
+        return d
 
 
 @dataclass