feat(tenant/kol): let KOLs self-subscribe to their own published packages

Add /kol/manage/packages/:id/self-subscription POST/DELETE on the tenant
side so a KOL can grant themselves access to their own published package
without going through the marketplace approval flow. Reject self-subscribe
through the marketplace with a clear error, expose owned_by_current_tenant
on package responses, and surface a self_subscription block on KolPackage
Response. The admin-web KOL workspace gets 订阅自己 / 取消订阅 entries with
matching messaging in the marketplace detail view.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/views/KolManageView.vue

@@ -11,6 +11,8 @@ import {
   CloudUploadOutlined,
   InboxOutlined,
   DeleteOutlined,
+  CheckCircleOutlined,
+  StopOutlined,
 } from "@ant-design/icons-vue";
 
 import KolPackageFormModal from "@/components/kol/KolPackageFormModal.vue";
@@ -79,6 +81,24 @@ const archivePackageMutation = useMutation({
   onError: (error) => message.error(formatError(error)),
 });
 
+const selfSubscribePackageMutation = useMutation({
+  mutationFn: (id: number) => kolManageApi.selfSubscribePackage(id),
+  onSuccess: () => {
+    message.success("已订阅自己的订阅包");
+    invalidateKolPackageAccess();
+  },
+  onError: (error) => message.error(formatError(error)),
+});
+
+const cancelSelfSubscriptionMutation = useMutation({
+  mutationFn: (id: number) => kolManageApi.cancelSelfSubscription(id),
+  onSuccess: () => {
+    message.success("已取消订阅自己的订阅包");
+    invalidateKolPackageAccess();
+  },
+  onError: (error) => message.error(formatError(error)),
+});
+
 const deletePackageMutation = useMutation({
   mutationFn: (id: number) => kolManageApi.deletePackage(id),
   onSuccess: (_, id) => {
@@ -150,6 +170,12 @@ const deletePromptMutation = useMutation({
   },
 });
 
+function invalidateKolPackageAccess() {
+  void queryClient.invalidateQueries({ queryKey: ["kol", "packages"] });
+  void queryClient.invalidateQueries({ queryKey: ["kol", "my-subscription-prompts"] });
+  void queryClient.invalidateQueries({ queryKey: ["workspace"] });
+}
+
 const packageInitialValue = computed<Partial<CreateKolPackageRequest> | undefined>(() => {
   if (!editingPackage.value) return undefined;
   return {
@@ -220,6 +246,18 @@ function packageStatusLabel(status: string) {
   if (status === "archived") return t("kol.manage.packageStatus.archived");
   return t("kol.manage.packageStatus.draft");
 }
+
+function isSelfSubscribed(pkg: KolPackageSummary) {
+  return pkg.self_subscription?.status === "active";
+}
+
+function canSelfSubscribe(pkg: KolPackageSummary) {
+  return pkg.status === "published" && !isSelfSubscribed(pkg);
+}
+
+function canCancelSelfSubscription(pkg: KolPackageSummary) {
+  return pkg.self_subscription?.status === "active";
+}
 </script>
 
 <template>
@@ -267,6 +305,7 @@ function packageStatusLabel(status: string) {
                     >
                       {{ packageStatusLabel(item.status) }}
                     </a-tag>
+                    <a-tag v-if="isSelfSubscribed(item)" color="blue" size="small">自己已订阅</a-tag>
                     <span>{{ t("kol.marketplace.prompts", { count: item.prompt_count }) }}</span>
                   </div>
                 </div>
@@ -290,6 +329,19 @@ function packageStatusLabel(status: string) {
                         >
                           <InboxOutlined /> {{ t('kol.manage.archivePackage') }}
                         </a-menu-item>
+                        <a-menu-item
+                          v-if="canSelfSubscribe(item)"
+                          @click="selfSubscribePackageMutation.mutate(item.id)"
+                        >
+                          <CheckCircleOutlined /> 订阅自己
+                        </a-menu-item>
+                        <a-menu-item
+                          v-if="canCancelSelfSubscription(item)"
+                          danger
+                          @click="cancelSelfSubscriptionMutation.mutate(item.id)"
+                        >
+                          <StopOutlined /> 取消订阅
+                        </a-menu-item>
                         <a-menu-divider />
                         <a-menu-item danger @click="handleDeletePackage(item.id)">
                           <DeleteOutlined /> {{ t('common.delete') }}