Improve routine configuration: delete triggers, fix pause, add feedback

- Add trash icon button to delete triggers (full stack: service, route, API client, UI)
- Fix pause/unpause bug where saving routine could revert status by excluding
  status from the save payload (status is managed via dedicated pause/resume buttons)
- Add toast feedback for run, pause, and resume actions
- Auto-switch to Runs tab after triggering a manual run
- Add live update invalidation for routine/trigger/run activity events

Co-Authored-By: Paperclip <noreply@paperclip.ing>

server/src/services/routines.ts

@@ -843,6 +843,13 @@ export function routineService(db: Db) {
       return (updated as RoutineTrigger | undefined) ?? null;
     },
 
+    deleteTrigger: async (id: string): Promise<boolean> => {
+      const existing = await getTriggerById(id);
+      if (!existing) return false;
+      await db.delete(routineTriggers).where(eq(routineTriggers.id, id));
+      return true;
+    },
+
     rotateTriggerSecret: async (
       id: string,
       actor: Actor,