Apply suggestions from code review

Co-authored-by: Copilot <[email protected]>

ballsdex/core/models.py

@@ -461,6 +461,8 @@ async def is_blocked(self, other_player: "Player") -> bool:
         return await Block.filter((Q(player1=self) & Q(player2=other_player))).exists()
 
     async def add_money(self, amount: int) -> int:
+        if amount <= 0:
+            raise ValueError("Amount to add must be positive")
         self.money += amount
         await self.save(update_fields=("money",))
         return self.money

ballsdex/packages/admin/money.py

@@ -26,7 +26,7 @@ async def balance(self, interaction: discord.Interaction[BallsDexBot], user: dis
         player = await Player.get_or_none(discord_id=user.id)
         if not player:
             await interaction.followup.send(
-                f"This user has does not have a {settings.bot_name} account.", ephemeral=True
+                f"This user does not have a {settings.bot_name} account.", ephemeral=True
             )
             return
 
@@ -52,7 +52,7 @@ async def add(
         player = await Player.get_or_none(discord_id=user.id)
         if not player:
             await interaction.followup.send(
-                f"This user has does not have a {settings.bot_name} account.", ephemeral=True
+                f"This user does not have a {settings.bot_name} account.", ephemeral=True
             )
             return
 
@@ -90,7 +90,7 @@ async def remove(
         player = await Player.get_or_none(discord_id=user.id)
         if not player:
             await interaction.followup.send(
-                f"This user has does not have a {settings.bot_name} account.", ephemeral=True
+                f"This user does not have a {settings.bot_name} account.", ephemeral=True
             )
             return