refactor(core): migrate to Bun and converge acquisition policies and Agent boundaries

packages/tasks/src/definitions.ts

@@ -1,144 +0,0 @@
-import { z } from "zod";
-import { defineTask, TaskRegistry } from "./registry.ts";
-
-// 任务书 §3.1-8 的九类任务。W1 只落空壳:输入 schema + 回显 handler,W2 填充处理器。
-// 填充规则见 README「新增/填充任务」:副作用走 withAttemptToken,外部条件用 step.waitForFact,
-// 业务状态写业务表,不要放进 handler 返回值。
-
-const id = z.string().min(1);
-
-/** 空壳 handler:记录一条日志并回显输入 */
-function stub<I>(name: string) {
-  return async (ctx: { input: I; logger: { info(msg: string, f?: Record<string, unknown>): void } }) => {
-    // TODO(W2): 实现真实处理器
-    ctx.logger.info(`${name}: stub handler (TODO W2)`);
-    return { todo: true as const, task: name, input: ctx.input };
-  };
-}
-
-const NETWORK_RETRY = {
-  maximumAttempts: 5,
-  initialInterval: "1s",
-  backoffCoefficient: 2,
-  maximumInterval: "60s",
-} as const;
-const FILE_RETRY = {
-  maximumAttempts: 3,
-  initialInterval: "2s",
-  backoffCoefficient: 2,
-  maximumInterval: "60s",
-} as const;
-const DB_RETRY = { maximumAttempts: 3, initialInterval: "1s", backoffCoefficient: 2, maximumInterval: "30s" } as const;
-
-export const ingestFeed = defineTask({
-  name: "ingestFeed",
-  version: 1,
-  lane: "network",
-  inputSchema: z.object({ feedSourceId: id }),
-  retryPolicy: NETWORK_RETRY,
-  handler: stub("ingestFeed"),
-});
-
-export const resolveObservation = defineTask({
-  name: "resolveObservation",
-  version: 1,
-  lane: "network",
-  inputSchema: z.object({ observationId: id }),
-  retryPolicy: NETWORK_RETRY,
-  handler: stub("resolveObservation"),
-});
-
-export const evaluateAcquisition = defineTask({
-  name: "evaluateAcquisition",
-  version: 1,
-  lane: "network",
-  inputSchema: z.object({
-    subscriptionId: id.optional(),
-    acquisitionSlotId: id.optional(),
-    sourceReleaseId: id.optional(),
-  }),
-  retryPolicy: DB_RETRY,
-  handler: stub("evaluateAcquisition"),
-});
-
-export const submitDownload = defineTask({
-  name: "submitDownload",
-  version: 1,
-  lane: "network",
-  inputSchema: z.object({ acquisitionPlanId: id }),
-  retryPolicy: NETWORK_RETRY,
-  handler: stub("submitDownload"),
-});
-
-export const verifyAndImport = defineTask({
-  name: "verifyAndImport",
-  version: 1,
-  lane: "file",
-  inputSchema: z.object({ downloadTaskId: id }),
-  retryPolicy: FILE_RETRY,
-  handler: stub("verifyAndImport"),
-});
-
-export const refreshMetadata = defineTask({
-  name: "refreshMetadata",
-  version: 1,
-  lane: "network",
-  inputSchema: z.object({ mediaEntityId: id }),
-  retryPolicy: NETWORK_RETRY,
-  handler: stub("refreshMetadata"),
-});
-
-export const reconcileLibrary = defineTask({
-  name: "reconcileLibrary",
-  version: 1,
-  lane: "maintenance",
-  inputSchema: z.object({ libraryRootId: id.optional(), reconcileRunId: id.optional() }),
-  retryPolicy: FILE_RETRY,
-  handler: stub("reconcileLibrary"),
-});
-
-export const cleanupDownloadCache = defineTask({
-  name: "cleanupDownloadCache",
-  version: 1,
-  lane: "file",
-  inputSchema: z.object({ downloaderInstanceId: id.optional() }),
-  retryPolicy: FILE_RETRY,
-  handler: stub("cleanupDownloadCache"),
-});
-
-export const resolveDecision = defineTask({
-  name: "resolveDecision",
-  version: 1,
-  lane: "agent",
-  inputSchema: z.object({ decisionId: id }),
-  retryPolicy: DB_RETRY,
-  handler: stub("resolveDecision"),
-});
-
-export const TASK_NAMES = [
-  "ingestFeed",
-  "resolveObservation",
-  "evaluateAcquisition",
-  "submitDownload",
-  "verifyAndImport",
-  "refreshMetadata",
-  "reconcileLibrary",
-  "cleanupDownloadCache",
-  "resolveDecision",
-] as const;
-export type TaskName = (typeof TASK_NAMES)[number];
-
-/** v0.1 的默认注册表;W2 把真实 handler 换进来(同名同版本替换,或升版本并保留旧版本) */
-export function createDefaultRegistry(): TaskRegistry {
-  return new TaskRegistry().register(
-    ingestFeed,
-    resolveObservation,
-    evaluateAcquisition,
-    submitDownload,
-    verifyAndImport,
-    refreshMetadata,
-    reconcileLibrary,
-    cleanupDownloadCache,
-    resolveDecision,
-  );
-}

packages/tasks/src/index.ts

@@ -1,20 +1,6 @@
 // @umt/tasks 公开入口:TaskEngine 端口 + OpenWorkflow 实现、任务注册表、outbox 中继、操作账本 fencing
 export const PACKAGE_NAME = "@umt/tasks";
 
-export {
-  cleanupDownloadCache,
-  createDefaultRegistry,
-  evaluateAcquisition,
-  ingestFeed,
-  reconcileLibrary,
-  refreshMetadata,
-  resolveDecision,
-  resolveObservation,
-  submitDownload,
-  TASK_NAMES,
-  type TaskName,
-  verifyAndImport,
-} from "./definitions.ts";
 export { FencingError, TaskCanceledError, UnknownTaskError } from "./errors.ts";
 export {
   consoleSink,