feat(discord): make /newsession identical to Telegram wizard

- Remove legacy DiscordNewSessionCommand/Handler and their tests.
- Rename /newsession-wizard to /newsession.
- Add shared pool capacity step before Format/Location.
- Render Format and Location in Discord wizard; Location uses a modal.
- Propagate Format, JoinLink and LocationAddress in BuildCommand.
- Publish created sessions through existing IPlatformMessenger pipeline.
- Update README, version bump to 3.11.1, sync compose/deploy/NavMenu.

src/GmRelay.Shared/Features/Sessions/CreateSession/Wizard/GameCreationWizard.cs

@@ -224,7 +224,16 @@ public sealed class GameCreationWizard
                     ? (WizardStepNames.Capacity, SetScheduledAt(payload, dt), payload)
                     : (null, dt == default ? "Не удалось разобрать дату" : "Дата в прошлом", payload);
 
-            case WizardStepNames.Capacity when payload.Single?.MaxPlayers is null:
+            case WizardStepNames.Capacity:
+                if (payload.Type == WizardCreationType.Pool)
+                {
+                    if (payload.Pool?.MaxPlayers is not null) return (null, "Лимит уже задан", payload);
+                    return int.TryParse(input, out var poolCap) && poolCap >= WizardStepLimits.MinCapacity && poolCap <= WizardStepLimits.MaxCapacity
+                        ? (WizardStepNames.Format, SetPoolMaxPlayers(payload, poolCap), payload)
+                        : (null, "Лимит должен быть 1..50", payload);
+                }
+
+                if (payload.Single?.MaxPlayers is not null) return (null, "Лимит уже задан", payload);
                 return int.TryParse(input, out var cap) && cap >= WizardStepLimits.MinCapacity && cap <= WizardStepLimits.MaxCapacity
                     ? (WizardStepNames.Format, SetMaxPlayers(payload, cap), payload)
                     : (null, "Лимит должен быть 1..50", payload);
@@ -314,10 +323,12 @@ public sealed class GameCreationWizard
     {
         if (choice is "no_limit")
         {
-            return (WizardStepNames.Format, SetMaxPlayers(p, null));
+            return p.Type == WizardCreationType.Pool
+                ? (WizardStepNames.Format, SetPoolMaxPlayers(p, null))
+                : (WizardStepNames.Format, SetMaxPlayers(p, null));
         }
 
-        if (choice is "waitlist:on" or "waitlist:off" && p.Single?.MaxPlayers is null)
+        if (choice is "waitlist:on" or "waitlist:off" && p.Type != WizardCreationType.Pool && p.Single?.MaxPlayers is null)
         {
             return (null, "Сначала введите лимит мест или нажмите «♾ Без лимита»");
         }
@@ -368,11 +379,12 @@ public sealed class GameCreationWizard
     {
         "_custom" => (WizardStepNames.PoolSystemDuration, null),
         { } c when c.Contains(':') => SplitSystemDuration(c) is (var sys, var dur)
-            ? (WizardStepNames.Format, SetSystem(p, sys) ?? SetDurationMinutes(p, dur))
+            ? (WizardStepNames.Capacity, SetSystem(p, sys) ?? SetDurationMinutes(p, dur))
             : (null, "Неверный выбор"),
         _ => (null, "Неизвестный выбор"),
     };
 
+
     private static (string?, string?) ApplyPoolAddSlotsChoice(WizardPayload p, string choice) => choice switch
     {
         "add" => BeginNewPoolSlot(p),
@@ -410,7 +422,7 @@ public sealed class GameCreationWizard
         WizardStepNames.Duration => WizardStepNames.System,
         WizardStepNames.DateTime => WizardStepNames.Duration,
         WizardStepNames.Capacity => WizardStepNames.DateTime,
-        WizardStepNames.Format => p.Type == WizardCreationType.Pool ? WizardStepNames.PoolSystemDuration : WizardStepNames.Capacity,
+        WizardStepNames.Format => WizardStepNames.Capacity,
         WizardStepNames.Location => WizardStepNames.Format,
         WizardStepNames.Visibility => WizardStepNames.Location,
         WizardStepNames.PickClub => WizardStepNames.Visibility,
@@ -458,6 +470,8 @@ public sealed class GameCreationWizard
     { p.Single ??= new WizardSingleInput(); p.Single.ScheduledAt = v; return null; }
     private static string? SetMaxPlayers(WizardPayload p, int? v)
     { p.Single ??= new WizardSingleInput(); p.Single.MaxPlayers = v; return null; }
+    private static string? SetPoolMaxPlayers(WizardPayload p, int? v)
+    { p.Pool ??= new WizardPoolInput(); p.Pool.MaxPlayers = v; return null; }
     private static string? SetWaitlist(WizardPayload p, bool v) { p.Waitlist = v; return null; }
     private static string? SetVisibility(WizardPayload p, WizardVisibility? v) { p.Visibility = v; return null; }
     private static string? SetClubId(WizardPayload p, Guid v) { p.ClubId = v; return null; }
@@ -518,7 +532,7 @@ public sealed class GameCreationWizard
     private static string? NextAfterSystem(WizardPayload p) => WizardStepNames.Duration;
     private static string? NextAfterDuration(WizardPayload p)
     {
-        if (p.Type == WizardCreationType.Pool) return WizardStepNames.Format;
+        if (p.Type == WizardCreationType.Pool) return WizardStepNames.Capacity;
         return p.Single?.MaxPlayers is not null ? WizardStepNames.Format : WizardStepNames.DateTime;
     }
     private static string? NextAfterVisibility(WizardPayload p)
@@ -530,6 +544,7 @@ public sealed class GameCreationWizard
         return p.Type == WizardCreationType.Pool ? WizardStepNames.PoolAddSlots : WizardStepNames.Publish;
     }
 
+
     private static (string? sys, int? dur) SplitSystemDuration(string s)
     {
         var idx = s.IndexOf(':');

src/GmRelay.Shared/Features/Sessions/CreateSession/Wizard/WizardPayload.cs

@@ -50,6 +50,8 @@ public sealed class WizardPayload
 
 public sealed class WizardPoolInput
 {
+    public int? MaxPlayers { get; set; }
+
     public List<WizardSlotInput> Slots { get; set; } = new();
 }
 

src/GmRelay.Shared/Features/Sessions/CreateSession/Wizard/WizardStepViewBuilder.cs

@@ -224,6 +224,7 @@ public static class WizardStepViewBuilder
         if (!string.IsNullOrEmpty(p.System)) sb.AppendLine($"🎲 Система: {p.System}");
         if (p.DurationMinutes.HasValue) sb.AppendLine($"⏱ Длительность: {p.DurationMinutes / 60} ч");
         AppendFormatLocation(sb, p);
+        if (p.Pool?.MaxPlayers is { } poolMax) sb.AppendLine($"👥 Мест в пуле: {poolMax}");
         sb.AppendLine($"🔒 Видимость: {RenderVisibilityText(p.Visibility)}");
         sb.AppendLine();
         sb.AppendLine($"Слоты ({p.Pool?.Slots.Count ?? 0}):");