feat: 管理员可删除内置技能并管理技能内文件

新增内置技能删除与技能文件删除 API，允许管理员编辑/删除内置技能文件；技能设置页与文件预览弹窗同步支持删除操作。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend-web/src/components/workspace/settings/skill-settings-page.tsx

@@ -71,8 +71,9 @@ import { useTheme } from "@/contexts/ThemeContext";
 import { getStoredAuth } from "@/core/auth";
 import { useI18n } from "@/core/i18n/hooks";
 import type { ValidateSkillUploadResponse } from "@/core/skills/api";
-import {
-  useDeleteCustomSkill,
+import {
+  useDeleteBuiltinSkill,
+  useDeleteCustomSkill,
   useDuplicateSkill,
   useGenerateMissingSkillNameZh,
   useGenerateSkillNameZh,
@@ -616,9 +617,10 @@ export function SkillRow({
   const { data: cardPublishSquares } = usePublishSquares();
   const setPinned = useSetSkillPinned();
   const setFeatured = useSetSkillFeatured();
-  const setAlwaysOn = useSetSkillAlwaysOn();
-  const { data: compression } = useSkillCompressionSettings();
-  const deleteSkill = useDeleteCustomSkill();
+  const setAlwaysOn = useSetSkillAlwaysOn();
+  const { data: compression } = useSkillCompressionSettings();
+  const deleteCustom = useDeleteCustomSkill();
+  const deleteBuiltin = useDeleteBuiltinSkill();
   const duplicateSkillMutation = useDuplicateSkill();
   const [confirmDeleteOpen, setConfirmDeleteOpen] = useState(false);
   const [tagPickerOpen, setTagPickerOpen] = useState(false);
@@ -634,8 +636,9 @@ export function SkillRow({
   const isOwned =
     isCustom && !isBuiltin && !!skill.owner_user_id && skill.owner_user_id === currentUserId;
   const isFromOthers = isCustom && !isBuiltin && !isOwned;
-  // Admin can edit/delete/unpublish anyone's skill; non-admin only their own.
-  const canManage = isCustom && (isOwned || isAdmin);
+  // Admin can manage custom skills from any owner; non-admin only their own.
+  const canManage = isCustom && (isOwned || isAdmin);
+  const canDelete = isAdmin || isOwned;
   const canTogglePublish = canManage && !isBuiltin;
   // 常驻(免压缩):内置技能仅管理员可设;自定义技能其所有者或管理员可设(与后端一致)。
   const canSetAlwaysOn = isAdmin || isOwned;
@@ -686,11 +689,15 @@ export function SkillRow({
     }
   }
 
-  async function handleDelete() {
-    try {
-      await deleteSkill.mutateAsync(skill.name);
-      toast.success(t.settings.skills.deleteSuccess);
-      setConfirmDeleteOpen(false);
+  async function handleDelete() {
+    try {
+      if (isBuiltin) {
+        await deleteBuiltin.mutateAsync(skill.name);
+      } else {
+        await deleteCustom.mutateAsync(skill.name);
+      }
+      toast.success(t.settings.skills.deleteSuccess);
+      setConfirmDeleteOpen(false);
     } catch (err) {
       toast.error(err instanceof Error ? err.message : String(err));
     }
@@ -918,7 +925,7 @@ export function SkillRow({
       >
         <TagsIcon className="size-3.5" />
       </Button>
-      {canManage && (
+      {canManage && (
         <Button
           size="icon"
           variant="ghost"
@@ -939,12 +946,12 @@ export function SkillRow({
           />
         </Button>
       )}
-      {canManage && (
-        <Button
-          size="icon"
-          variant="ghost"
-          className={cn(
-            "h-8 w-8 shrink-0",
+      {canManage && (
+        <Button
+          size="icon"
+          variant="ghost"
+          className={cn(
+            "h-8 w-8 shrink-0",
             skill.pinned && "text-emerald-600 hover:text-emerald-700",
           )}
           disabled={setPinned.isPending}
@@ -1011,11 +1018,11 @@ export function SkillRow({
       >
         <CopyIcon className="size-3.5" />
       </Button>
-      {canManage && (
-        <Button
-          size="icon"
-          variant="ghost"
-          className="text-destructive hover:text-destructive h-8 w-8 shrink-0"
+      {canDelete && (
+        <Button
+          size="icon"
+          variant="ghost"
+          className="text-destructive hover:text-destructive h-8 w-8 shrink-0"
           onClick={() => setConfirmDeleteOpen(true)}
           title={t.settings.skills.deleteAction}
         >
@@ -1109,16 +1116,18 @@ export function SkillRow({
             <Button
               variant="outline"
               onClick={() => setConfirmDeleteOpen(false)}
-              disabled={deleteSkill.isPending}
+              disabled={deleteCustom.isPending || deleteBuiltin.isPending}
             >
               {t.common.cancel}
             </Button>
             <Button
               variant="destructive"
               onClick={() => void handleDelete()}
-              disabled={deleteSkill.isPending}
-            >
-              {deleteSkill.isPending ? t.common.loading : t.common.delete}
+              disabled={deleteCustom.isPending || deleteBuiltin.isPending}
+            >
+              {deleteCustom.isPending || deleteBuiltin.isPending
+                ? t.common.loading
+                : t.common.delete}
             </Button>
           </DialogFooter>
         </DialogContent>

frontend-web/src/components/workspace/skills/skill-file-preview-dialog.tsx

@@ -5,6 +5,7 @@ import {
   DownloadIcon,
   Loader2,
   PencilIcon,
+  Trash2Icon,
   XIcon,
 } from "lucide-react";
 import { useEffect, useMemo, useState } from "react";
@@ -22,6 +23,7 @@ import { Textarea } from "@/components/ui/textarea";
 import { MarkdownContent } from "@/components/workspace/messages/markdown-content";
 import { getSkillFileDownloadURL } from "@/core/skills/api";
 import {
+  useDeleteSkillFile,
   useSaveSkillFile,
   useSkillFileContent,
 } from "@/core/skills/hooks";
@@ -66,6 +68,7 @@ export function SkillFilePreviewDialog({
     open ? path : null,
   );
   const save = useSaveSkillFile();
+  const remove = useDeleteSkillFile();
 
   const [editing, setEditing] = useState(false);
   const [draft, setDraft] = useState("");
@@ -77,6 +80,8 @@ export function SkillFilePreviewDialog({
   }, [path, open]);
 
   const fileEditable = !!data?.editable && treeEditable;
+  const isRootSkillFile = path?.replace(/\\/g, "/").toLowerCase() === "skill.md";
+  const fileDeletable = !!data && treeEditable && !isRootSkillFile;
   const isMarkdown = useMemo(() => {
     if (!path) return false;
     const lower = path.toLowerCase();
@@ -115,6 +120,18 @@ export function SkillFilePreviewDialog({
     }
   }
 
+  async function handleDelete() {
+    if (!skillName || !path) return;
+    if (!window.confirm(tx.filesDeleteConfirm.replace("{path}", path))) return;
+    try {
+      await remove.mutateAsync({ skillName, path });
+      toast.success(tx.filesDeleteSuccess);
+      onOpenChange(false);
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : String(err));
+    }
+  }
+
   async function handleCopyPath() {
     if (!path) return;
     await navigator.clipboard.writeText(path);
@@ -158,6 +175,18 @@ export function SkillFilePreviewDialog({
                   {tx.filesEditAction}
                 </Button>
               )}
+              {fileDeletable && !editing && (
+                <Button
+                  size="sm"
+                  variant="ghost"
+                  className="h-7 px-2 text-xs text-destructive hover:text-destructive"
+                  onClick={() => void handleDelete()}
+                  disabled={remove.isPending}
+                >
+                  {remove.isPending ? <Loader2 className="size-3.5 animate-spin" /> : <Trash2Icon className="size-3.5" />}
+                  {tx.filesDeleteAction}
+                </Button>
+              )}
               {editing && (
                 <>
                   <Button