fix(bot): IsComplete must not flag null MaxPlayers as missing (no-limit)

After 3.9.6 fixed long-polling, the bot finally reaches the final
'✅ Создать' step. Users pressing '♾ Без лимита' on the Capacity step
get a valid payload where Single.MaxPlayers = null (the legitimate
no-limit choice from GameCreationWizard.ApplyCapacityChoice 'no_limit'),
but CreateSessionHandler.IsComplete then reports 'лимит мест' as
missing, blocking session creation.

This regression existed since 3.9.3 (when 'no_limit' was added) but
stayed invisible because 3.9.4 and 3.9.5 never reached SubmitDraft
(libgssapi-krb5 missing → long-polling hung). Once 3.9.6 restored
polling, the bug surfaced immediately.

Fix: drop the null-MaxPlayers check from IsComplete for Single type.
Null is a valid 'no limit' state and must pass through to BuildCommands
→ shared handler, which already accepts null MaxPlayers correctly.

Closes #131.

Bump version 3.9.6 -> 3.9.7

.gitea/workflows/deploy.yml

@@ -6,7 +6,7 @@ on:
       - main 
 
 env:
-  VERSION: 3.9.6
+  VERSION: 3.9.7
 
 jobs:
   # ЧАСТЬ 1: Собираем образы и кладем в Gitea (чтобы делиться с ребятами)

Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>3.9.6</Version>
+    <Version>3.9.7</Version>
     <TargetFramework>net10.0</TargetFramework>
     <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>

compose.yaml

@@ -49,7 +49,7 @@ services:
         crond -f
 
   bot:
-    image: git.codeanddice.ru/toutsu/gmrelay-bot:3.9.6
+    image: git.codeanddice.ru/toutsu/gmrelay-bot:3.9.7
     restart: always
     depends_on:
       db:
@@ -67,7 +67,7 @@ services:
       retries: 3
 
   discord:
-    image: git.codeanddice.ru/toutsu/gmrelay-discord-bot:3.9.6
+    image: git.codeanddice.ru/toutsu/gmrelay-discord-bot:3.9.7
     restart: always
     depends_on:
       db:
@@ -86,7 +86,7 @@ services:
       retries: 3
 
   web:
-    image: git.codeanddice.ru/toutsu/gmrelay-web:3.9.6
+    image: git.codeanddice.ru/toutsu/gmrelay-web:3.9.7
     restart: always
     depends_on:
       db:

src/GmRelay.Bot/Features/Sessions/CreateSession/CreateSessionHandler.cs

@@ -229,7 +229,11 @@ public sealed class CreateSessionHandler
         if (p.Type == WizardCreationType.Single)
         {
             if (p.Single?.ScheduledAt is null) missingFields.Add("дата/время");
-            if (p.Single?.MaxPlayers is null) missingFields.Add("лимит мест");
+            // MaxPlayers = null is a valid "♾ Без лимита" choice
+            // (see GameCreationWizard.ApplyCapacityChoice "no_limit"). Only a
+            // missing wizard step on the numeric-input path is a real defect;
+            // a non-null 0 also blocks (zero players is never what the user
+            // asked for). Treat null as "no limit" and accept it.
         }
         else
         {

src/GmRelay.Web/Components/Layout/NavMenu.razor

@@ -82,7 +82,7 @@
                     </button>
                 </form>
 
-                <div class="nav-version">v3.9.6</div>
+                <div class="nav-version">v3.9.7</div>
             </div>
         </Authorized>
         <NotAuthorized>

tests/GmRelay.Bot.Tests/Features/Sessions/CreateSession/Wizard/CreateSessionHandlerSubmitValidationTests.cs

@@ -146,4 +146,47 @@ public sealed class CreateSessionHandlerSubmitValidationTests
         Assert.Single(messenger.Edits);
         Assert.Contains("слоты", messenger.Edits[0].Text, StringComparison.OrdinalIgnoreCase);
     }
+
+    [Fact]
+    public async Task SubmitDraftAsync_SingleWithNoLimit_DoesNotReportMaxPlayersAsMissing()
+    {
+        // Regression for #131: pressing "♾ Без лимита" sets MaxPlayers = null.
+        // IsComplete must NOT flag that as a missing field; null means
+        // "no player limit" and is a valid final state.
+        var drafts = new FakeWizardDraftRepository();
+        var messenger = new FakeWizardMessenger();
+
+        var sut = new CreateSessionHandler(
+            drafts,
+            shared: null!,
+            messenger,
+            NullLogger<CreateSessionHandler>.Instance);
+
+        var payload = new WizardPayload
+        {
+            Type = WizardCreationType.Single,
+            Title = "T",
+            System = "Dnd5e",
+            DurationMinutes = 240,
+            Visibility = WizardVisibility.Public,
+            Single = new WizardSingleInput
+            {
+                ScheduledAt = DateTimeOffset.UtcNow.AddDays(7),
+                MaxPlayers = null,
+            },
+        };
+        var draft = NewDraft(WizardStepNames.Confirm, payload);
+        drafts.Seed(draft);
+
+        await sut.SubmitDraftAsync(draft, CancellationToken.None);
+
+        // Validation must let the no-limit payload through. The shared
+        // handler is null, so anything that reached the database call would
+        // throw a NullReferenceException — that is caught by the retry
+        // path and reported as a "💥 Ошибка:" edit, not a missing-fields
+        // edit. Therefore we assert that NO edit mentions a missing field.
+        Assert.NotEmpty(messenger.Edits);
+        var lastEdit = messenger.Edits[^1].Text;
+        Assert.DoesNotContain("Не заполнены", lastEdit, StringComparison.OrdinalIgnoreCase);
+    }
 }