fix: resolve flaky holiday hours test and clean up dev scripts

- Use fixed date (Thursday Feb 26, 2026) instead of dynamic tomorrow
  to avoid timezone-related test flakiness
- Remove orphaned SQL fragment from init-script.sql
- Clean up duplicate color code definitions in local-dev-2.sh
- Add Rustfs data wipe and SabreDAV startup to dev script
- Add composer.lock to .gitignore

backend/handlers/admin/bookings_test.go

@@ -857,8 +857,9 @@ func TestAdminBookings_Create_DuringHolidayHours_Rejected(t *testing.T) {
 	}
 	defer fixtures.DeleteService(db.DB, serviceID)
 
-	// Create an exceptional (holiday) hours group for tomorrow
-	tomorrowDate := time.Now().AddDate(0, 0, 1)
+	// Create an exceptional (holiday) hours group for a fixed date (Thursday)
+	// Using absolute date - no timezone conversions
+	targetDate := time.Date(2026, 2, 26, 0, 0, 0, 0, time.UTC) // Thursday Feb 26, 2026
 	var groupID int
 	err = db.DB.QueryRow(context.Background(), `
 		INSERT INTO exceptional_working_hours_groups (name, description)
@@ -870,29 +871,36 @@ func TestAdminBookings_Create_DuringHolidayHours_Rejected(t *testing.T) {
 	}
 	defer db.DB.Exec(context.Background(), "DELETE FROM exceptional_working_hours_groups WHERE id = $1", groupID)
 
-	// Add closed hours for tomorrow (closed all day)
+	// Add closed hours for targetDate (closed all day)
 	_, err = db.DB.Exec(context.Background(), `
 		INSERT INTO exceptional_working_hours (group_id, weekday, start_time, end_time, is_open)
 		VALUES ($1, $2, $3, $4, $5)
-	`, groupID, int(tomorrowDate.Weekday()), "00:00:00", "23:59:59", false)
+	`, groupID, int(targetDate.Weekday()), "00:00:00", "23:59:59", false)
 	if err != nil {
 		t.Fatalf("failed to create holiday hours: %v", err)
 	}
 
-	// Apply the group to the week containing tomorrow
+	// Apply the group to the week containing targetDate
+	// Must use Monday of that week (matching handler logic)
+	targetWeekday := int(targetDate.Weekday())
+	if targetWeekday == 0 {
+		targetWeekday = 7 // Sunday -> 7
+	}
+	mondayOfWeek := targetDate.AddDate(0, 0, -targetWeekday+1)
 	_, err = db.DB.Exec(context.Background(), `
 		INSERT INTO exceptional_group_applications (group_id, week_start)
 		VALUES ($1, $2)
-	`, groupID, tomorrowDate)
+	`, groupID, mondayOfWeek)
+
 	if err != nil {
 		t.Fatalf("failed to create holiday application: %v", err)
 	}
 
 	// Try to create booking during holiday - should fail
-	tomorrowTime := tomorrowDate.Add(14 * time.Hour).Truncate(time.Second) // 2 PM tomorrow
+	targetTime := targetDate.Add(14 * time.Hour).Truncate(time.Second) // 2 PM on targetDate
 	req := bookings.AdminCreateBookingForUserRequest{
 		UserID:     userID,
-		StartTime:  tomorrowTime,
+		StartTime:  targetTime,
 		ServiceIDs: []string{serviceID},
 	}