diff --git a/lib/membership/member.ex b/lib/membership/member.ex
index 1fd2812..7f30833 100644
--- a/lib/membership/member.ex
+++ b/lib/membership/member.ex
@@ -647,10 +647,13 @@ defmodule Mv.Membership.Member do
             false
         end
       end)
-      |> Enum.sort_by(fn cycle ->
-        interval = Map.get(cycle, :membership_fee_type).interval
-        Mv.MembershipFees.CalendarCycles.calculate_cycle_end(cycle.cycle_start, interval)
-      end, {:desc, Date})
+      |> Enum.sort_by(
+        fn cycle ->
+          interval = Map.get(cycle, :membership_fee_type).interval
+          Mv.MembershipFees.CalendarCycles.calculate_cycle_end(cycle.cycle_start, interval)
+        end,
+        {:desc, Date}
+      )
       |> List.first()
     else
       nil
diff --git a/lib/membership_fees/changes/validate_same_interval.ex b/lib/membership_fees/changes/validate_same_interval.ex
index 0d067ce..7bfbeee 100644
--- a/lib/membership_fees/changes/validate_same_interval.ex
+++ b/lib/membership_fees/changes/validate_same_interval.ex
@@ -83,8 +83,7 @@ defmodule Mv.MembershipFees.Changes.ValidateSameInterval do
   defp get_intervals(current_type_id, new_type_id) do
     alias Mv.MembershipFees.MembershipFeeType
 
-    case {Ash.get(MembershipFeeType, current_type_id),
-          Ash.get(MembershipFeeType, new_type_id)} do
+    case {Ash.get(MembershipFeeType, current_type_id), Ash.get(MembershipFeeType, new_type_id)} do
       {{:ok, current_type}, {:ok, new_type}} ->
         {:ok, current_type.interval, new_type.interval}
 
@@ -116,4 +115,3 @@ defmodule Mv.MembershipFees.Changes.ValidateSameInterval do
   defp format_interval(:yearly), do: "yearly"
   defp format_interval(interval), do: to_string(interval)
 end
-
diff --git a/lib/membership_fees/membership_fee_cycle.ex b/lib/membership_fees/membership_fee_cycle.ex
index 6a101e9..b437ead 100644
--- a/lib/membership_fees/membership_fee_cycle.ex
+++ b/lib/membership_fees/membership_fee_cycle.ex
@@ -56,6 +56,7 @@ defmodule Mv.MembershipFees.MembershipFeeCycle do
       description "Mark cycle as paid"
       require_atomic? false
       accept [:notes]
+
       change fn changeset, _context ->
         Ash.Changeset.force_change_attribute(changeset, :status, :paid)
       end
@@ -65,6 +66,7 @@ defmodule Mv.MembershipFees.MembershipFeeCycle do
       description "Mark cycle as suspended"
       require_atomic? false
       accept [:notes]
+
       change fn changeset, _context ->
         Ash.Changeset.force_change_attribute(changeset, :status, :suspended)
       end
@@ -74,6 +76,7 @@ defmodule Mv.MembershipFees.MembershipFeeCycle do
       description "Mark cycle as unpaid (for error correction)"
       require_atomic? false
       accept [:notes]
+
       change fn changeset, _context ->
         Ash.Changeset.force_change_attribute(changeset, :status, :unpaid)
       end
diff --git a/test/membership/member_cycle_calculations_test.exs b/test/membership/member_cycle_calculations_test.exs
index 8dcaeed..19b2a7f 100644
--- a/test/membership/member_cycle_calculations_test.exs
+++ b/test/membership/member_cycle_calculations_test.exs
@@ -118,6 +118,7 @@ defmodule Mv.Membership.MemberCycleCalculationsTest do
 
       # Current cycle
       cycle_start = CalendarCycles.calculate_cycle_start(today, :yearly)
+
       create_cycle(member, fee_type, %{
         cycle_start: cycle_start,
         status: :paid
@@ -179,6 +180,7 @@ defmodule Mv.Membership.MemberCycleCalculationsTest do
 
       # Current cycle
       cycle_start = CalendarCycles.calculate_cycle_start(today, :yearly)
+
       create_cycle(member, fee_type, %{
         cycle_start: cycle_start,
         status: :unpaid
@@ -186,8 +188,10 @@ defmodule Mv.Membership.MemberCycleCalculationsTest do
 
       # Future cycle (if we're not at the end of the year)
       next_year = today.year + 1
+
       if today.month < 12 or today.day < 31 do
         next_year_start = Date.new!(next_year, 1, 1)
+
         create_cycle(member, fee_type, %{
           cycle_start: next_year_start,
           status: :unpaid
@@ -265,6 +269,7 @@ defmodule Mv.Membership.MemberCycleCalculationsTest do
       })
 
       cycle_start = CalendarCycles.calculate_cycle_start(today, :yearly)
+
       create_cycle(member, fee_type, %{
         cycle_start: cycle_start,
         status: :unpaid
@@ -279,4 +284,3 @@ defmodule Mv.Membership.MemberCycleCalculationsTest do
     end
   end
 end
-
diff --git a/test/membership/member_type_change_integration_test.exs b/test/membership/member_type_change_integration_test.exs
index 7b23cf8..8ea151c 100644
--- a/test/membership/member_type_change_integration_test.exs
+++ b/test/membership/member_type_change_integration_test.exs
@@ -116,11 +116,12 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
           :ok
       end
 
-      _current_cycle = create_cycle(member, yearly_type1, %{
-        cycle_start: current_cycle_start,
-        status: :unpaid,
-        amount: Decimal.new("100.00")
-      })
+      _current_cycle =
+        create_cycle(member, yearly_type1, %{
+          cycle_start: current_cycle_start,
+          status: :unpaid,
+          amount: Decimal.new("100.00")
+        })
 
       # Change membership fee type (same interval, different amount)
       assert {:ok, _updated_member} =
@@ -138,6 +139,7 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
         MembershipFeeCycle
         |> Ash.Query.filter(member_id == ^member.id and cycle_start == ^past_cycle_start)
         |> Ash.read_one!()
+
       assert past_cycle_after.status == :paid
       assert Decimal.equal?(past_cycle_after.amount, Decimal.new("100.00"))
       assert past_cycle_after.membership_fee_type_id == yearly_type1.id
@@ -157,7 +159,10 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
       # Verify old cycle with old type doesn't exist anymore
       old_current_cycles =
         MembershipFeeCycle
-        |> Ash.Query.filter(member_id == ^member.id and cycle_start == ^current_cycle_start and membership_fee_type_id == ^yearly_type1.id)
+        |> Ash.Query.filter(
+          member_id == ^member.id and cycle_start == ^current_cycle_start and
+            membership_fee_type_id == ^yearly_type1.id
+        )
         |> Ash.read!()
 
       assert Enum.empty?(old_current_cycles)
@@ -279,10 +284,12 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
       Process.sleep(100)
 
       # Create cycles: one in the past (unpaid, ended), one current (unpaid, not ended)
-      past_cycle_start = CalendarCycles.calculate_cycle_start(
-        Date.add(today, -365),
-        :yearly
-      )
+      past_cycle_start =
+        CalendarCycles.calculate_cycle_start(
+          Date.add(today, -365),
+          :yearly
+        )
+
       current_cycle_start = CalendarCycles.calculate_cycle_start(today, :yearly)
 
       # Past cycle (unpaid) - should remain unchanged (cycle_start < today)
@@ -297,11 +304,12 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
           :ok
       end
 
-      past_cycle = create_cycle(member, yearly_type1, %{
-        cycle_start: past_cycle_start,
-        status: :unpaid,
-        amount: Decimal.new("100.00")
-      })
+      past_cycle =
+        create_cycle(member, yearly_type1, %{
+          cycle_start: past_cycle_start,
+          status: :unpaid,
+          amount: Decimal.new("100.00")
+        })
 
       # Current cycle (unpaid) - should be regenerated (cycle_start >= today)
       # Delete existing cycle if it exists (from auto-generation)
@@ -315,11 +323,12 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
           :ok
       end
 
-      _current_cycle = create_cycle(member, yearly_type1, %{
-        cycle_start: current_cycle_start,
-        status: :unpaid,
-        amount: Decimal.new("100.00")
-      })
+      _current_cycle =
+        create_cycle(member, yearly_type1, %{
+          cycle_start: current_cycle_start,
+          status: :unpaid,
+          amount: Decimal.new("100.00")
+        })
 
       # Change membership fee type
       assert {:ok, _updated_member} =
@@ -351,7 +360,10 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
       # Verify old cycle with old type doesn't exist anymore
       old_current_cycles =
         MembershipFeeCycle
-        |> Ash.Query.filter(member_id == ^member.id and cycle_start == ^current_cycle_start and membership_fee_type_id == ^yearly_type1.id)
+        |> Ash.Query.filter(
+          member_id == ^member.id and cycle_start == ^current_cycle_start and
+            membership_fee_type_id == ^yearly_type1.id
+        )
         |> Ash.read!()
 
       assert Enum.empty?(old_current_cycles)
@@ -439,4 +451,3 @@ defmodule Mv.Membership.MemberTypeChangeIntegrationTest do
     end
   end
 end
-
diff --git a/test/membership_fees/changes/validate_same_interval_test.exs b/test/membership_fees/changes/validate_same_interval_test.exs
index 7b7a433..af777fa 100644
--- a/test/membership_fees/changes/validate_same_interval_test.exs
+++ b/test/membership_fees/changes/validate_same_interval_test.exs
@@ -70,6 +70,7 @@ defmodule Mv.MembershipFees.Changes.ValidateSameIntervalTest do
 
       refute changeset.valid?
       assert %{errors: errors} = changeset
+
       assert Enum.any?(errors, fn error ->
                error.field == :membership_fee_type_id and
                  error.message =~ "yearly" and
@@ -79,7 +80,8 @@ defmodule Mv.MembershipFees.Changes.ValidateSameIntervalTest do
 
     test "allows first assignment of membership fee type" do
       yearly_type = create_fee_type(%{interval: :yearly})
-      member = create_member(%{}) # No fee type assigned
+      # No fee type assigned
+      member = create_member(%{})
 
       changeset =
         member