feat: add 4 example membership fee types to seed script

priv/repo/seeds.exs

@@ -5,6 +5,39 @@
 
 alias Mv.Membership
 alias Mv.Accounts
+alias Mv.MembershipFees.MembershipFeeType
+
+# Create example membership fee types
+for fee_type_attrs <- [
+      %{
+        name: "Standard (Jährlich)",
+        amount: Decimal.new("120.00"),
+        interval: :yearly,
+        description: "Standard jährlicher Mitgliedsbeitrag"
+      },
+      %{
+        name: "Standard (Halbjährlich)",
+        amount: Decimal.new("65.00"),
+        interval: :half_yearly,
+        description: "Standard halbjährlicher Mitgliedsbeitrag"
+      },
+      %{
+        name: "Standard (Vierteljährlich)",
+        amount: Decimal.new("35.00"),
+        interval: :quarterly,
+        description: "Standard vierteljährlicher Mitgliedsbeitrag"
+      },
+      %{
+        name: "Standard (Monatlich)",
+        amount: Decimal.new("12.00"),
+        interval: :monthly,
+        description: "Standard monatlicher Mitgliedsbeitrag"
+      }
+    ] do
+  MembershipFeeType
+  |> Ash.Changeset.for_create(:create, fee_type_attrs)
+  |> Ash.create!(upsert?: true, upsert_identity: :unique_name)
+end
 
 for attrs <- [
       # Basic example fields (for testing)
@@ -332,6 +365,7 @@ end
 IO.puts("✅ Seeds completed successfully!")
 IO.puts("📝 Created sample data:")
 IO.puts("   - Global settings: club_name = #{default_club_name}")
+IO.puts("   - Membership fee types: 4 types (Yearly, Half-yearly, Quarterly, Monthly)")
 IO.puts("   - Custom fields: 12 fields (String, Date, Boolean, Email, + 8 realistic fields)")
 IO.puts("   - Admin user: admin@mv.local (password: testpassword)")
 IO.puts("   - Sample members: Hans, Greta, Friedrich")