feat: implement financial recurrence, privacy settings, and premium DateTimePicker overhaul

prisma/schema.prisma

@@ -44,6 +44,7 @@ model Group {
   pixKey         String?
   pixName        String?
   status         GroupStatus @default(ACTIVE)
+  showTotalInPublic Boolean   @default(true)
 }
 
 enum GroupStatus {
@@ -63,6 +64,7 @@ model Player {
   number      Int?
   position    String       @default("MEI")
   level       Int          @default(3)
+  isLeader    Boolean      @default(false)
   groupId     String
   createdAt   DateTime     @default(now())
   group       Group        @relation(fields: [groupId], references: [id])
@@ -167,6 +169,7 @@ model FinancialEvent {
   isRecurring    Boolean  @default(false)
   recurrenceInterval String? // 'MONTHLY', 'WEEKLY'
   recurrenceEndDate DateTime?
+  showTotalInPublic Boolean @default(true)
 }
 
 model Payment {