feat(downloads): fold download plans into download panel (DL-3)

- Waiting plans (approval / disk space / automation off / queued) are
  active-segment rows on /download-tasks/board, merged by created_at,
  counted, with approve / cancel actions; ?plan= deep links and legacy
  /downloads/plans routes redirect to the panel
- Download detail shows "why this download" (source, purpose, replaced
  version, reasons); raw evaluation in tech info
- Failed / cancelled / expired plans appear in the entity download
  history; rejected / revoked / expired approvals close draft plans
- New GET /acquisition-plans/{id}/why, POST /acquisition-plans/{id}/cancel
- User-facing copy no longer says 下载计划; glossary updated

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/components/agent/agent-interaction.tsx

@@ -298,7 +298,7 @@ export function OptionsCard({ runId, view, waiting }: { runId: string; view: Opt
 
 const RISK_LABEL: Record<RiskLevel, string> = { low: "低", medium: "中", high: "高" };
 const PLAN_LABEL: Record<string, string> = {
-  acquisition_plan: "下载计划",
+  acquisition_plan: "下载",
   organize_plan: "整理计划",
   policy_revision: "策略版本",
 };

apps/web/app/components/agent/agui3.test.ts

@@ -189,6 +189,8 @@ describe("聚合:进度行用能力元数据的人话计数", () => {
     expect(activitySummary([call({ capabilityId: "download.inspect" }), call({ capabilityId: "site.list" })])).toBe(
       "查了 1 个下载任务和站点",
     );
+    // DL-3:不再说"生成了 1 份下载计划"
+    expect(activitySummary([call({ capabilityId: "download.plan" })])).toBe("准备下载 1 个资源");
   });
   it("一回合的全部调用聚成一行(1 次也折叠),展开前看不到能力 ID", () => {
     const activity: ActivityItem[] = [{ kind: "tool", key: "c1", call: call({ capabilityId: "site.list" }) }];

apps/web/app/components/agent/conversation-model.ts

@@ -43,7 +43,7 @@ export function deniedReason(call: ToolCallView): { text: string; approvable: bo
 
 // ── 进度行的人话计数 ──
 
-type Group = { verb: string; nouns: { noun: string; unit: string | null; n: number }[] };
+type Group = { verb: string; bare: boolean; nouns: { noun: string; unit: string | null; n: number }[] };
 
 function activityOf(id: string) {
   return (
@@ -73,7 +73,7 @@ export function activitySummary(calls: Pick<ToolCallView, "capabilityId" | "stat
     if (c.status === "denied" || c.status === "failed" || authDenial(c)) continue;
     let g = groups.find((x) => x.verb === a.verb);
     if (!g) {
-      g = { verb: a.verb, nouns: [] };
+      g = { verb: a.verb, bare: !!a.bare, nouns: [] };
       groups.push(g);
     }
     const n = g.nouns.find((x) => x.noun === a.noun);
@@ -81,7 +81,10 @@ export function activitySummary(calls: Pick<ToolCallView, "capabilityId" | "stat
     else g.nouns.push({ noun: a.noun, unit: a.unit, n: 1 });
   }
   const text = (g: Group) =>
-    cjkJoin(`${g.verb}了`, joinNouns(g.nouns.map((x) => (x.unit ? `${x.n} ${x.unit}${x.noun}` : x.noun))));
+    cjkJoin(
+      g.bare ? g.verb : `${g.verb}了`,
+      joinNouns(g.nouns.map((x) => (x.unit ? `${x.n} ${x.unit}${x.noun}` : x.noun))),
+    );
   if (groups.length > 4) return `${groups.slice(0, 3).map(text).join("，")}等 ${groups.length} 类操作`;
   return groups.map(text).join("，");
 }

apps/web/app/components/agent/mock.ts

@@ -52,7 +52,7 @@ function script(goal: string, opts: AgentSessionOptions): Step[] {
   const steps: AgentPlanStep[] = [
     { id: "s1", title: "查本地库存和收录版本", status: "running", note: null },
     { id: "s2", title: "在站点搜 4K 候选", status: "pending", note: null },
-    { id: "s3", title: "选资源并生成下载计划", status: "pending", note: null },
+    { id: "s3", title: "选资源并准备下载", status: "pending", note: null },
     { id: "s4", title: "提交下载", status: "pending", note: null },
   ];
   let revision = 0;
@@ -324,7 +324,7 @@ function checkupSteps(goal: string, report: string): Step[] {
   ]);
 }
 
-/** 例 3:方案绑定下载计划(选定即批准),选了之后直接提交 */
+/** 例 3:方案绑定计划(选定即批准),选了之后直接提交 */
 const DUNE_PLAN = "00000000-0000-4000-8000-00000000b003";
 const DUNE_DECISION = "00000000-0000-4000-8000-00000000d003";
 function optionSteps(goal: string): Step[] {
@@ -338,7 +338,7 @@ function optionSteps(goal: string): Step[] {
         revision: 1,
         steps: [
           { id: "s1", title: "找 1080p 资源", status: "done", note: null },
-          { id: "s2", title: "生成下载计划", status: "done", note: null },
+          { id: "s2", title: "准备下载", status: "done", note: null },
           { id: "s3", title: "等你选方案", status: "running", note: null },
           { id: "s4", title: "提交下载", status: "pending", note: null },
         ],

apps/web/app/components/agent/report-humanize.test.ts

@@ -56,7 +56,7 @@ describe("humanizeReport(汇报兜底)", () => {
       names,
     );
     expect(r.text).toBe(
-      "检测站点 被拒；查看下载任务 无法调用（返回 参数不对）；生成下载计划 返回 plan=null，拒绝原因 下载盘用量未知",
+      "检测站点 被拒；查看下载任务 无法调用（返回 参数不对）；准备下载 返回 plan=null，拒绝原因 下载盘用量未知",
     );
     expect(r.text).not.toMatch(/site\.health_check|invalid_input|volume_state_unknown/);
     expect(humanizeReport("被规则拒绝（unauthorized），未重试", names).text).toBe("被规则拒绝（需要你批准），未重试");