feat(platform): route scheduler notifications through platform messenger

tests/GmRelay.Bot.Tests/Discord/DiscordNewSessionHandlerTests.cs

@@ -20,11 +20,14 @@ public sealed class DiscordNewSessionHandlerTests
     [Fact]
     public void ParseTimeInput_ShouldParseDiscordDateFormat()
     {
-        var result = DiscordNewSessionHandler.ParseTimeInput("2026-05-20 19:30");
+        var expected = FutureDateAt1930();
+        var result = DiscordNewSessionHandler.ParseTimeInput(
+            expected.ToString("yyyy-MM-dd HH:mm", System.Globalization.CultureInfo.InvariantCulture));
+
         Assert.True(result.IsSuccess);
-        Assert.Equal(2026, result.Value.Year);
-        Assert.Equal(5, result.Value.Month);
-        Assert.Equal(20, result.Value.Day);
+        Assert.Equal(expected.Year, result.Value.Year);
+        Assert.Equal(expected.Month, result.Value.Month);
+        Assert.Equal(expected.Day, result.Value.Day);
         Assert.Equal(19, result.Value.Hour);
         Assert.Equal(30, result.Value.Minute);
     }
@@ -39,11 +42,14 @@ public sealed class DiscordNewSessionHandlerTests
     [Fact]
     public void ParseTimeInput_ShouldParseRussianDateFormat()
     {
-        var result = DiscordNewSessionHandler.ParseTimeInput("20.05.2026 19:30");
+        var expected = FutureDateAt1930();
+        var result = DiscordNewSessionHandler.ParseTimeInput(
+            expected.ToString("dd.MM.yyyy HH:mm", System.Globalization.CultureInfo.InvariantCulture));
+
         Assert.True(result.IsSuccess);
-        Assert.Equal(2026, result.Value.Year);
-        Assert.Equal(5, result.Value.Month);
-        Assert.Equal(20, result.Value.Day);
+        Assert.Equal(expected.Year, result.Value.Year);
+        Assert.Equal(expected.Month, result.Value.Month);
+        Assert.Equal(expected.Day, result.Value.Day);
     }
 
     [Fact]
@@ -141,4 +147,17 @@ public sealed class DiscordNewSessionHandlerTests
         Assert.Contains("DiscordSessionBatchRenderer.Render", source, StringComparison.Ordinal);
         Assert.Contains("WithEmbeds", source, StringComparison.Ordinal);
     }
+
+    private static DateTimeOffset FutureDateAt1930()
+    {
+        var future = DateTimeOffset.UtcNow.AddDays(7);
+        return new DateTimeOffset(
+            future.Year,
+            future.Month,
+            future.Day,
+            19,
+            30,
+            0,
+            TimeSpan.Zero);
+    }
 }

tests/GmRelay.Bot.Tests/Discord/DiscordPlatformMessengerTests.cs

@@ -32,6 +32,21 @@ public sealed class DiscordPlatformMessengerTests
         Assert.Contains("interactionReplies.Store(reply)", source, StringComparison.Ordinal);
     }
 
+    [Fact]
+    public async Task DiscordPlatformMessenger_ShouldSupportSchedulerNotifications()
+    {
+        var source = await ReadRepositoryFileAsync("src/GmRelay.DiscordBot/Infrastructure/Discord/DiscordPlatformMessenger.cs");
+
+        Assert.Contains("SendConfirmationRequestAsync", source, StringComparison.Ordinal);
+        Assert.Contains("UpdateConfirmationRequestAsync", source, StringComparison.Ordinal);
+        Assert.Contains("SendJoinLinkNotificationAsync", source, StringComparison.Ordinal);
+        Assert.Contains("SendDirectSessionNotificationAsync", source, StringComparison.Ordinal);
+        Assert.Contains("UpdateRescheduleVoteAsync", source, StringComparison.Ordinal);
+        Assert.Contains("DiscordSessionBatchRenderer", source, StringComparison.Ordinal);
+        Assert.Contains("DiscordRescheduleVotingRenderer", source, StringComparison.Ordinal);
+        Assert.Contains("GetDMChannelAsync", source, StringComparison.Ordinal);
+    }
+
     private static async Task<string> ReadRepositoryFileAsync(string relativePath)
     {
         var directory = new DirectoryInfo(AppContext.BaseDirectory);

tests/GmRelay.Bot.Tests/Discord/DiscordProjectStructureTests.cs

@@ -61,7 +61,7 @@ public sealed class DiscordProjectStructureTests
         var prChecks = File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "pr-checks.yml"));
         var deploy = File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml"));
 
-        Assert.Contains("gmrelay-discord-bot:2.6.0", compose);
+        Assert.Contains("gmrelay-discord-bot:2.7.0", compose);
         Assert.Contains("Discord__Token=${DISCORD_BOT_TOKEN:?Set DISCORD_BOT_TOKEN in .env}", compose);
         Assert.Contains("src/GmRelay.DiscordBot/Dockerfile", deploy);
         Assert.Contains("DISCORD_BOT_TOKEN", deploy);
@@ -75,13 +75,13 @@ public sealed class DiscordProjectStructureTests
     {
         var repoRoot = GetRepoRoot();
 
-        Assert.Contains("<Version>2.6.0</Version>", File.ReadAllText(Path.Combine(repoRoot, "Directory.Build.props")));
-        Assert.Contains("VERSION: 2.6.0", File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml")));
-        Assert.Contains("gmrelay-bot:2.6.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
-        Assert.Contains("gmrelay-web:2.6.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
-        Assert.Contains("gmrelay-discord-bot:2.6.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains("<Version>2.7.0</Version>", File.ReadAllText(Path.Combine(repoRoot, "Directory.Build.props")));
+        Assert.Contains("VERSION: 2.7.0", File.ReadAllText(Path.Combine(repoRoot, ".gitea", "workflows", "deploy.yml")));
+        Assert.Contains("gmrelay-bot:2.7.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains("gmrelay-web:2.7.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
+        Assert.Contains("gmrelay-discord-bot:2.7.0", File.ReadAllText(Path.Combine(repoRoot, "compose.yaml")));
         Assert.Contains(
-            "v2.6.0",
+            "v2.7.0",
             File.ReadAllText(Path.Combine(repoRoot, "src", "GmRelay.Web", "Components", "Layout", "NavMenu.razor")));
     }
 }

tests/GmRelay.Bot.Tests/Discord/DiscordRescheduleDeadlineBoundaryTests.cs

@@ -0,0 +1,31 @@
+namespace GmRelay.Bot.Tests.Discord;
+
+public sealed class DiscordRescheduleDeadlineBoundaryTests
+{
+    [Fact]
+    public async Task DiscordDeadlineService_ShouldUsePlatformMessengerForMessageUpdates()
+    {
+        var source = await ReadRepositoryFileAsync(
+            "src/GmRelay.DiscordBot/Features/Sessions/DiscordRescheduleVotingDeadlineService.cs");
+
+        Assert.DoesNotContain("RestClient", source, StringComparison.Ordinal);
+        Assert.DoesNotContain("ModifyMessageAsync", source, StringComparison.Ordinal);
+        Assert.Contains("UpdateRescheduleVoteAsync", source, StringComparison.Ordinal);
+        Assert.Contains("IPlatformMessenger", source, StringComparison.Ordinal);
+    }
+
+    private static async Task<string> ReadRepositoryFileAsync(string relativePath)
+    {
+        var directory = new DirectoryInfo(AppContext.BaseDirectory);
+        while (directory is not null)
+        {
+            var candidate = Path.Combine(directory.FullName, relativePath);
+            if (File.Exists(candidate))
+                return await File.ReadAllTextAsync(candidate);
+
+            directory = directory.Parent;
+        }
+
+        throw new FileNotFoundException($"Could not locate repository file '{relativePath}'.");
+    }
+}

tests/GmRelay.Bot.Tests/Discord/DiscordSessionInteractionModuleSourceTests.cs

@@ -21,6 +21,16 @@ public sealed class DiscordSessionInteractionModuleSourceTests
         Assert.Contains("MessageFlags.Ephemeral", source, StringComparison.Ordinal);
     }
 
+    [Fact]
+    public async Task Module_ShouldRouteRsvpButtonsToNeutralHandler()
+    {
+        var source = await ReadRepositoryFileAsync("src/GmRelay.DiscordBot/Features/Sessions/DiscordSessionInteractionModule.cs");
+
+        Assert.Contains("[ComponentInteraction(\"rsvp\")", source, StringComparison.Ordinal);
+        Assert.Contains("HandleRsvpHandler", source, StringComparison.Ordinal);
+        Assert.Contains("PlatformKind.Discord", source, StringComparison.Ordinal);
+    }
+
     private static async Task<string> ReadRepositoryFileAsync(string relativePath)
     {
         var directory = new DirectoryInfo(AppContext.BaseDirectory);

tests/GmRelay.Bot.Tests/Discord/DiscordStartupTests.cs

@@ -82,6 +82,9 @@ public sealed class DiscordStartupTests
         Assert.Contains("DiscordPermissionChecker", program);
         Assert.Contains("DiscordPlatformMessenger", program);
         Assert.Contains("IPlatformMessenger", program);
+        Assert.Contains("PlatformSchedulerOptions(PlatformKind.Discord)", program);
+        Assert.Contains("AddHostedService<SessionSchedulerService>", program);
+        Assert.Contains("HandleRsvpHandler", program);
     }
 
     private static string ReadProgram()