feat(手动下载): 保存目录选项接口与下载前指定作品

- GET /download-save-paths:按下载器列出默认保存目录与路径映射的下载器侧目录,并给出「自动」会用的下载器(站点指定 > 默认 > 第一个)
- POST /acquisition-plans 新增 identity(本地作品或 TMDB 外部身份):转调 /source-releases/{id}/identity 建 / 绑作品并加人工锁,再按该作品下载
- 测试 harness 支持装配 agent 模块;pg 测试覆盖保存目录选项与指定身份下载

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei

apps/server/test/acquisition-organize/harness.ts

@@ -14,6 +14,7 @@ import { createLogger } from "../../src/logger.ts";
 import { type AoOverrides, createAcquisitionOrganizeModule } from "../../src/modules/acquisition-organize/index.ts";
 import type { AoDeps } from "../../src/modules/acquisition-organize/services/common.ts";
 import { createCapabilityRegistry } from "../../src/modules/agent/capability-registry.ts";
+import { createAgentModule } from "../../src/modules/agent/index.ts";
 import { createSourcesIdentityModule } from "../../src/modules/sources-identity/index.ts";
 import type { ServerContext } from "../../src/modules/types.ts";
 import { fakeEngine } from "../support/engine.ts";
@@ -90,8 +91,8 @@ export interface Harness {
 export async function createHarness(
   name: string,
   overrides: AoOverrides = {},
-  /** withSources:同时装配 sources-identity 模块(待处理中心路由等) */
-  opts: { withSources?: boolean } = {},
+  /** withSources:同时装配 sources-identity 模块(待处理中心路由等);withAgent:再装配 agent 模块(POST /acquisition-plans 等) */
+  opts: { withSources?: boolean; withAgent?: boolean } = {},
 ): Promise<Harness> {
   const ts = await createTestSchema(uniqueSchema(`ao_test_${name}`));
   const { db } = ts;
@@ -161,7 +162,11 @@ export async function createHarness(
     role: "all",
     version: "test",
     db,
-    modules: opts.withSources ? [module, createSourcesIdentityModule()] : [module],
+    modules: [
+      module,
+      ...(opts.withSources || opts.withAgent ? [createSourcesIdentityModule()] : []),
+      ...(opts.withAgent ? [createAgentModule()] : []),
+    ],
     ctx,
     apiKeyStore: {
       async findByHash(hash) {