feat(web): W3-2 library, subscriptions and rules, preferences, decisions inbox, identity and metadata

- library list (kind/status/search, cursor paging) and detail: paths and roots, external identity
  mapping with lock, field-level metadata sources and locks, slot cards with rejection reasons,
  content units (provisional flag), downloads with verification; remap/lock/refresh/merge actions
- subscriptions: list/create/update, slot rules editor (hard/soft/upgrade/completion),
  policy revision draft -> preview -> publish (grant warning) -> rollback
- preferences: tag CRUD, disable/enable, suppression records and lift, history timeline
- inbox: grouped by entity and kind, evidence/suggestion/impact/preview, resolve options, SSE refresh
- identity: pool assign/dismiss/retry, external identity revisions and lock, title alias management
- all responses validated against contracts zod schemas

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

apps/web/app/api/slots.ts

@@ -0,0 +1,58 @@
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import {
+  AcquisitionSlot,
+  type AcquisitionSlotCreate,
+  type AcquisitionSlotUpdate,
+  cursorPage,
+  type SlotStatus,
+} from "@umt/contracts";
+import { api } from "~/lib/api.ts";
+import { getParsed, parseOrThrow } from "./library.ts";
+
+// 收录目标 Slot:硬条件 / 软偏好 / 回退 / 升级阈值 / 完成条件(REQ §6.1)
+
+export const slotKeys = {
+  all: ["slots"] as const,
+  list: (f: SlotFilters) => ["slots", "list", f] as const,
+};
+
+export type SlotFilters = { mediaEntityId?: string; status?: SlotStatus };
+
+const Page = cursorPage(AcquisitionSlot);
+
+export function useSlots(filters: SlotFilters, enabled = true) {
+  return useQuery({
+    queryKey: slotKeys.list(filters),
+    enabled,
+    queryFn: ({ signal }) => getParsed(Page, "/acquisition-slots", { ...filters, limit: 200 }, signal),
+  });
+}
+
+function useInvalidate() {
+  const qc = useQueryClient();
+  return () => {
+    void qc.invalidateQueries({ queryKey: slotKeys.all });
+    void qc.invalidateQueries({ queryKey: ["library"] });
+  };
+}
+
+export function useCreateSlot() {
+  const done = useInvalidate();
+  return useMutation({
+    mutationFn: (body: AcquisitionSlotCreate) =>
+      api.post<unknown>("/acquisition-slots", body).then((d) => parseOrThrow(AcquisitionSlot, d, "/acquisition-slots")),
+    onSuccess: done,
+  });
+}
+
+/** 规则修改带 expectedRevision(乐观并发);status 只由状态机推进 */
+export function useUpdateSlot() {
+  const done = useInvalidate();
+  return useMutation({
+    mutationFn: ({ id, ...body }: AcquisitionSlotUpdate & { id: string }) =>
+      api
+        .patch<unknown>(`/acquisition-slots/${id}`, body)
+        .then((d) => parseOrThrow(AcquisitionSlot, d, "/acquisition-slots")),
+    onSuccess: done,
+  });
+}