Add phase requirement filter for vote/results endpoints

Endpoints/VoteEndpoints.cs

@@ -3,6 +3,7 @@ using GameList.Data;
 using GameList.Domain;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
+using GameList.Infrastructure;
 
 namespace GameList.Endpoints;
 
@@ -10,7 +11,9 @@ public static class VoteEndpoints
 {
     public static void MapVoteEndpoints(this IEndpointRouteBuilder app)
     {
-        var group = app.MapGroup("/api/votes").RequireAuthorization();
+        var group = app.MapGroup("/api/votes")
+            .RequireAuthorization()
+            .AddEndpointFilter(new PhaseRequirementFilter(Phase.Vote));
 
         group.MapGet("/mine", async (HttpContext ctx, AppDbContext db) =>
         {