refactor(interactive): remove streaming interactive stack (superseded by ConPTY)

The embedded ConPTY terminal replaced the in-app streaming interactive session, so
delete the dead stack: StreamingClaudeSession, InteractiveSessionService,
ProcessClaudeStreamTransport, IClaudeStreamTransport, ILiveSession, LiveSessionRegistry,
IdleSessionReaper (+ WorkerConfig.InteractiveIdleTimeoutMinutes), the WorkerHub
interactive methods + HubBroadcaster events, IWorkerClient interactive members, the
TaskMonitorViewModel composer + SessionTerminalView composer markup, and the old
'Run interactively' entry. AskUser/PendingQuestionRegistry, the autonomous path,
planning, ResumeTaskInTerminal, and all ConPTY code are kept. Localization pruned.

src/ClaudeDo.Ui/Views/MissionControl/MonitorPaneView.axaml

@@ -107,14 +107,7 @@
           Label="{Binding DisplayTitle}"
           IsRunning="{Binding IsRunning}"
           IsDone="{Binding IsDone}"
-          IsFailed="{Binding IsFailed}"
-          IsComposerVisible="{Binding IsInteractiveLive}"
-          ComposerText="{Binding ComposerDraft, Mode=TwoWay}"
-          SubmitCommand="{Binding SubmitComposerCommand}"
-          InterruptCommand="{Binding InterruptInteractiveCommand}"
-          ComposerPlaceholder="{loc:Tr session.composer.placeholder}"
-          QueuedMessages="{Binding QueuedMessages}"
-          HasQueuedMessages="{Binding HasQueuedMessages}" />
+          IsFailed="{Binding IsFailed}" />
 
     </DockPanel>
   </Border>