Add factory reset admin endpoint and use it in smoke test

Program.cs

@@ -308,6 +308,26 @@ admin.MapPost("/reset", async (HttpContext ctx, AppDbContext db, IConfiguration
     return Results.Ok(new { state.CurrentPhase, state.UpdatedAt });
 });
 
+admin.MapPost("/factory-reset", async (HttpContext ctx, AppDbContext db, IConfiguration config) =>
+{
+    if (!IsAuthorized(ctx, config)) return Results.Unauthorized();
+
+    await using var tx = await db.Database.BeginTransactionAsync();
+
+    await db.Votes.ExecuteDeleteAsync();
+    await db.Suggestions.ExecuteDeleteAsync();
+    await db.Players.ExecuteDeleteAsync();
+    await db.AppState.ExecuteDeleteAsync();
+
+    var fresh = NewAppState();
+    db.AppState.Add(fresh);
+    await db.SaveChangesAsync();
+
+    await tx.CommitAsync();
+
+    return Results.Ok(new { fresh.CurrentPhase, fresh.UpdatedAt });
+});
+
 app.Run();
 
 static async Task<Player> GetOrCreatePlayer(HttpContext ctx, AppDbContext db)
@@ -350,6 +370,13 @@ static bool IsAuthorized(HttpContext ctx, IConfiguration config)
     return !string.IsNullOrWhiteSpace(expected) && provided == expected;
 }
 
+static AppState NewAppState() => new()
+{
+    Id = 1,
+    CurrentPhase = Phase.Suggest,
+    UpdatedAt = DateTimeOffset.UnixEpoch
+};
+
 public record SetNameRequest(string Name);
 public record SuggestionRequest(string Name, string? Genre, string? Description, string? ScreenshotUrl, string? YoutubeUrl);
 public record SuggestionDto(int Id, string Name, string? Genre, string? Description, string? ScreenshotUrl, string? YoutubeUrl);