fix: Type conversion errors for TrustedMember UUID and created_at column fetching

backend/routes/trusted_circle.py

@@ -101,13 +101,13 @@ async def get_trusted_members(
     members = db.query(TrustedMember).filter(
         TrustedMember.user_id == current_user.id,
         TrustedMember.is_active == True
-    ).order_by(TrustedMember.joined_at.desc()).all()
+    ).order_by(TrustedMember.created_at.desc()).all()
     
-    return [{"id": m.id, "email": m.email, "joined_at": m.joined_at.isoformat()} for m in members]
+    return [{"id": m.id, "email": m.email, "joined_at": m.created_at.isoformat()} for m in members]
 
 @router.delete("/trusted-circle/{member_id}")
 async def remove_trusted_member(
-    member_id: int,
+    member_id: str,
     current_user: User = Depends(get_current_user),
     db: Session = Depends(get_db)
 ):

frontend/app/settings/page.tsx

@@ -12,7 +12,7 @@ export default function SettingsPage() {
   const [isInviting, setIsInviting] = useState(false);
   const [inviteSuccess, setInviteSuccess] = useState(false);
   const [inviteError, setInviteError] = useState("");
-  const [trustedMembers, setTrustedMembers] = useState<{id: number, email: string}[]>([]);
+  const [trustedMembers, setTrustedMembers] = useState<{id: string, email: string}[]>([]);
 
   const fetchMembers = async () => {
     try {
@@ -46,7 +46,7 @@ export default function SettingsPage() {
     }
   };
 
-  const handleRemoveMember = async (id: number) => {
+  const handleRemoveMember = async (id: string) => {
     try {
       await api.removeTrustedMember(id);
       fetchMembers();

frontend/lib/api.ts

@@ -154,9 +154,9 @@ export const api = {
     apiPost<{ success: boolean; message: string }>("/api/trusted-circle/invite", { email }),
 
   getTrustedMembers: () =>
-    apiGet<{ id: number; email: string; joined_at: string }[]>("/api/trusted-circle"),
+    apiGet<{ id: string; email: string; joined_at: string }[]>("/api/trusted-circle"),
 
-  removeTrustedMember: (id: number) =>
+  removeTrustedMember: (id: string) =>
     apiDelete<{ success: boolean; message: string }>(`/api/trusted-circle/${id}`),
 
   broadcastWeeklyReport: () =>