// Query for groups the user has joined
    const joinedGroupMemberships = await ctx.db
      .query("group_members")
      .withIndex("by_user", (q) => q.eq("userId", args.id))
      .collect();
    const joinedGroups = await Promise.all(
      joinedGroupMemberships.map(async (membership) => {
        const group = await ctx.db.get(membership.groupId);
        return { ...membership, group };
      }),
    );

  // Query for groups the user has joined
    const joinedGroupMemberships = await ctx.db
      .query("group_members")
      .withIndex("by_user", (q) => q.eq("userId", args.id))
      .collect();
    const joinedGroups = await Promise.all(
      joinedGroupMemberships.map(async (membership) => {
        const group = await ctx.db.get(membership.groupId);
        return { ...membership, group };
      }),
    );