feat: Enhanced dues overdue system with detailed time tracking

- Enhanced update-overdue-statuses API to calculate and return specific overdue durations (years/months)
- Updated overdue-count API to provide detailed member information with overdue durations
- Enhanced DuesOverdueBanner component to display expandable list of overdue members with their specific overdue time
- Added automatic marking of members as inactive when dues are over 1 year overdue
- Improved UI to show 'Dues Overdue - X Members Affected' with detailed breakdown
- Members with overdue dues now display exact time overdue (e.g., '2 years 3 months overdue')
- Added proper TypeScript interfaces for overdue member data
- Enhanced banner shows inactive status and overdue duration for each affected member

pages/dashboard/member-list.vue

@@ -572,7 +572,13 @@ const createPortalAccount = async (member: Member) => {
 // Overdue dues handlers
 const loadOverdueCount = async () => {
   try {
-    const response = await $fetch<{ success: boolean; data: { count: number } }>('/api/members/overdue-count');
+    const response = await $fetch<{ 
+      success: boolean; 
+      data: { 
+        count: number;
+        overdueMembers: any[];
+      } 
+    }>('/api/members/overdue-count');
     if (response.success) {
       overdueCount.value = response.data.count;
     }