fix(plugins): 插件管理 - 修正官方应用插件的分类与状态显示

AI 审美分析和剪辑工作台在管理页显示为"已停用"，原因是三处插件
分类清单不一致：

- 后端 officialApplicationPolicies 缺少 editor-shell
- 管理页 officialApplicationIds 同时缺少 ai-art-critique 和 editor-shell
- 用户插件页另有一份重复清单

后端把这两个插件当作系统协议处理（Kind=protocol），platformAvailable
回退为 false，于是返回"管理员已停用该插件"，管理页据此渲染成"已停用"。

修复：

- 后端补上 editor-shell 应用策略（权威修复，决定平台可用性）
- 前端抽取唯一清单 OFFICIAL_APPLICATION_PLUGIN_IDS，管理页与用户插件页
  共用，删除两份重复实现
- 补前后端回归测试，锁定这 8 个官方应用插件

验证：tsc --noEmit 通过；前端 17 项测试通过；后端 TestEditorShell* 与
既有插件测试通过；前后端镜像构建通过。

web/src/pages/plugins/index.tsx

@@ -10,8 +10,7 @@ import "@/lib/plugins/builtin";
 import { EAGLE_PLUGIN_ID } from "@/lib/plugins/builtin/eagle";
 import { PROMPT_OPTIMIZER_PLUGIN_ID } from "@/lib/plugins/builtin/prompt-optimizer";
 import { COMFYUI_PLUGIN_ID, RUNNINGHUB_PLUGIN_ID } from "@/lib/plugins/builtin/workflows";
-import { MEDIA_CONVERSION_PLUGIN_ID } from "@/lib/plugins/builtin/media-conversion";
-import { ART_CRITIQUE_PLUGIN_ID } from "@/lib/art-critique/contracts";
+import { isOfficialApplicationPluginId } from "@/lib/plugins/official-applications";
 import type { PluginManifest, PluginManifestV2, RegisteredPlugin } from "@/lib/plugins/plugin-types";
 import { getEagleLibrary, type EagleFolder } from "@/services/api/eagle";
 import { fetchPlugins, setUserPluginEnabled, type BackendPlugin, type PluginState } from "@/services/api/plugins";
@@ -142,7 +141,7 @@ export default function PluginsPage() {
         const normalizedSearch = search.trim().toLocaleLowerCase();
         return registeredPlugins.filter((plugin) => {
             const state = pluginStates[plugin.manifest.id];
-            const isApplicationPlugin = backendPluginById.get(plugin.manifest.id)?.management.kind === "application" || isOfficialApplicationPlugin(plugin.manifest.id);
+            const isApplicationPlugin = backendPluginById.get(plugin.manifest.id)?.management.kind === "application" || isOfficialApplicationPluginId(plugin.manifest.id);
             if (user?.role !== "admin" && !features.systemPluginsVisibleToUsers && !isApplicationPlugin) return false;
             const installation = installations.find((item) => item.manifest.id === plugin.manifest.id);
             const enabled = state?.effectiveEnabled ?? Boolean(installation?.enabled);
@@ -186,7 +185,7 @@ export default function PluginsPage() {
     }, [pluginSections, scrollTarget]);
 
     const categoryCounts = useMemo(() => {
-        const visiblePlugins = registeredPlugins.filter((plugin) => user?.role === "admin" || features.systemPluginsVisibleToUsers || isOfficialApplicationPlugin(plugin.manifest.id));
+        const visiblePlugins = registeredPlugins.filter((plugin) => user?.role === "admin" || features.systemPluginsVisibleToUsers || isOfficialApplicationPluginId(plugin.manifest.id));
         const counts: Record<string, number> = { all: visiblePlugins.length, text: 0, image: 0, video: 0, audio: 0, payment: 0, other: 0 };
         for (const plugin of visiblePlugins) {
             for (const section of protocolSectionMeta) {
@@ -627,14 +626,10 @@ function toRegisteredPlugin(plugin: BackendPlugin): RegisteredPlugin {
     return { manifest: plugin.manifest, source: plugin.source };
 }
 
-function isOfficialApplicationPlugin(pluginId: string) {
-    return [RUNNINGHUB_PLUGIN_ID, COMFYUI_PLUGIN_ID, EAGLE_PLUGIN_ID, PROMPT_OPTIMIZER_PLUGIN_ID, "portrait-clearance", ART_CRITIQUE_PLUGIN_ID, MEDIA_CONVERSION_PLUGIN_ID].includes(pluginId);
-}
-
 function pluginSourceLabel(plugin: RegisteredPlugin, state?: PluginState) {
     if (plugin.source === "uploaded") return "自定义插件";
     if (plugin.source === "system") return "系统插件";
-    if (state?.canToggle || isOfficialApplicationPlugin(plugin.manifest.id)) return "官方插件";
+    if (state?.canToggle || isOfficialApplicationPluginId(plugin.manifest.id)) return "官方插件";
     return "系统插件";
 }