15040eb954
In the session creation wizard (Telegram + Discord), the Capacity step only exposed waitlist on/off buttons. The 'no waitlist' button silently advanced to the next step without setting MaxPlayers, so users who tried to create a session with no player cap were blocked with 'Не заполнены поля: лимит мест'. The DB contract and CreateSessionCommand already supported null MaxPlayers (int?, ck_sessions_max_players check in V006), and the web form already exposes 'Без лимита' as an empty InputNumber — only the wizard flow was broken. Changes: - Add '♾ Без лимита' choice button to Capacity in shared WizardStepViewBuilder.BuildCapacity (Telegram) and to RenderCapacity / RenderPoolSlotCapacity in DiscordWizardStep (Discord). - Add 'no_limit' branch to GameCreationWizard.ApplyCapacityChoice that sets MaxPlayers to null and advances to Visibility. - Change GameCreationWizard.SetMaxPlayers signature from int to int? so the 'no limit' branch compiles. - Change CreateSessionCommand builder in both Telegram and Discord submitters to take int? maxPlayers and drop the '?? 0' that would have turned null into 0 (violating the DB CHECK and the 'no limit' contract). - In Discord BuildConfirmDescription, render '👥 Без лимита, waitlist вкл/выкл' when MaxPlayers is null (the previous code silently omitted the line). - Expose BuildCommand as internal in both submitters and add InternalsVisibleTo('GmRelay.Bot.Tests') to the DiscordBot assembly for unit-test access. Tests (9 new): - WizardStepRenderTests.CapacityStep_HasWaitlistButtons — asserts the 'Без лимита' button is present. - GameCreationWizardStepTransitionsTests.NoLimitCapacityButton_… — asserts the choice advances to Visibility and leaves MaxPlayers null in the JSON draft. - GameCreationWizardStepTransitionsTests.ChoiceCallback_AdvancesToExpectedStep — new Theory row for Capacity/no_limit. - CreateSessionHandlerBuildCommandTests (new) — null/value propagation through the Telegram submitter's BuildCommand. - DiscordWizardStepCapacityRenderTests (new) — 'Без лимита' button is rendered for both Capacity and PoolSlotCapacity, with the expected custom-id shape. - DiscordWizardSubmitterBuildCommandTests (new) — null/value propagation through the Discord submitter's BuildCommand. Closes #123