Add route /family/list

geneit_backend/src/models.rs

@@ -94,3 +94,15 @@ pub struct NewMembership {
     pub time_create: i64,
     pub is_admin: bool,
 }
+
+#[derive(Queryable, Debug, serde::Serialize)]
+pub struct FamilyMembership {
+    user_id: i32,
+    family_id: i32,
+    name: String,
+    time_create: i64,
+    is_admin: bool,
+    invitation_code: String,
+    count_members: i64,
+    count_admins: i64,
+}