feat(app): FA2 -- fellowship/allegiance command routing for graphical + headless hosts

Both LiveSocialSessionBindings construction sites updated together
(LiveSessionRuntimeFactory.cs, HeadlessSessionHost.cs) so the single
GameEventWiring.WireAll registration site serves both hosts identically
(the K-slice unification). CurrentGameRuntimeCommandAdapter implements
IRuntimeFellowshipCommands/IRuntimeAllegianceCommands over the App
command bus (LiveSessionCommandRouter gains 12 new *RuntimeCmd records
+ registrations + LiveSessionCommandBindings send delegates), mirroring
DirectGameRuntimeCommandAdapter's direct-session shape including the
identical Quit leader-hand-off rule read from RuntimeFellowshipState.
CurrentGameRuntimeAdapter (the graphical IGameRuntimeView/
IGameRuntimeCommands composite) exposes the two new views/command
groups. Headless's DirectGameRuntimeCommandAdapter needed no changes --
it already implements both new interfaces from the Runtime-layer
commit.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/AcDream.App.Tests/Net/LiveSessionCommandRouterTests.cs

@@ -617,6 +617,18 @@ public sealed class LiveSessionCommandRouterTests
             CharacterState: characterState ?? new RuntimeCharacterState(),
             SendSingleCharacterOption: sendSingleCharacterOption ?? ((_, _) => { }),
             SaveCharacterOptions: saveCharacterOptions ?? (() => { }),
+            SendFellowshipCreate: (_, _) => { },
+            SendFellowshipRecruit: _ => { },
+            SendFellowshipDismiss: _ => { },
+            SendFellowshipQuit: _ => { },
+            SendFellowshipAssignNewLeader: _ => { },
+            SendFellowshipChangeOpenness: _ => { },
+            SendFellowshipUpdateRequest: _ => { },
+            SendAllegianceSwear: _ => { },
+            SendAllegianceBreak: _ => { },
+            SendAllegianceKick: _ => { },
+            SendAllegianceInfoRequest: _ => { },
+            SendAllegianceUpdateRequest: _ => { },
             Log: log));
 
     [MethodImpl(MethodImplOptions.NoInlining)]