feat(distill,conversations,scheduler,api,ui): close deep chats with a distiller fork, digest and index, idle and weekly state jobs

ui/src/lib/api/client.ts

@@ -234,6 +234,17 @@ export class ApiClient {
     return this.post(`/api/conversations/${id}/merge`);
   }
 
+  close(id: string): Promise<{
+    id: string;
+    status: string;
+    fork?: string;
+    text?: string;
+    digest?: string | null;
+    error?: string | null;
+  }> {
+    return this.post(`/api/conversations/${id}/close`);
+  }
+
   bind(
     id: string,
     frontend: string,