feat(schedule-command): register /schedule in MessageOrchestrator

Add /schedule handler to both agentic and classic mode registration,
gated on enable_scheduler. Add to get_bot_commands() for Telegram
command menu visibility.

Author: Félix Díez Arias

src/bot/orchestrator.py

@@ -311,6 +311,10 @@ def _register_agentic_handlers(self, app: Application) -> None:
         ]
         if self.settings.enable_project_threads:
             handlers.append(("sync_threads", command.sync_threads))
+        if self.settings.enable_scheduler:
+            from .handlers import schedule
+
+            handlers.append(("schedule", schedule.schedule_command))
 
         for cmd, handler in handlers:
             app.add_handler(CommandHandler(cmd, self._inject_deps(handler)))
@@ -376,6 +380,10 @@ def _register_classic_handlers(self, app: Application) -> None:
         ]
         if self.settings.enable_project_threads:
             handlers.append(("sync_threads", command.sync_threads))
+        if self.settings.enable_scheduler:
+            from .handlers import schedule
+
+            handlers.append(("schedule", schedule.schedule_command))
 
         for cmd, handler in handlers:
             app.add_handler(CommandHandler(cmd, self._inject_deps(handler)))
@@ -420,6 +428,8 @@ async def get_bot_commands(self) -> list:  # type: ignore[type-arg]
             ]
             if self.settings.enable_project_threads:
                 commands.append(BotCommand("sync_threads", "Sync project topics"))
+            if self.settings.enable_scheduler:
+                commands.append(BotCommand("schedule", "Manage scheduled jobs"))
             return commands
         else:
             commands = [
@@ -440,6 +450,8 @@ async def get_bot_commands(self) -> list:  # type: ignore[type-arg]
             ]
             if self.settings.enable_project_threads:
                 commands.append(BotCommand("sync_threads", "Sync project topics"))
+            if self.settings.enable_scheduler:
+                commands.append(BotCommand("schedule", "Manage scheduled jobs"))
             return commands
 
     # --- Agentic handlers ---