chore: include pre-built dist for github install

dist/tools/delegate-task/background-task.d.ts

@@ -0,0 +1,8 @@
+import type { DelegateTaskArgs, ToolContextWithMetadata } from "./types";
+import type { ExecutorContext, ParentContext } from "./executor-types";
+import type { FallbackEntry } from "../../shared/model-requirements";
+export declare function executeBackgroundTask(args: DelegateTaskArgs, ctx: ToolContextWithMetadata, executorCtx: ExecutorContext, parentContext: ParentContext, agentToUse: string, categoryModel: {
+    providerID: string;
+    modelID: string;
+    variant?: string;
+} | undefined, systemContent: string | undefined, fallbackChain?: FallbackEntry[]): Promise<string>;