feat(plugin-market): rename component filter to "插件组件" with hint tooltip + persist filters

- Rename the in-app plugin market component filter label to "插件组件" /
  "Plugin Component"
- Add an Info icon tooltip explaining what plugin components are (Tool /
  Command / EventListener, etc.)
- Persist filter selections (type / component / tags / sort) in localStorage
  so they survive reloads; restored on mount (URL type param still wins)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/i18n/locales/en-US.ts

@@ -670,7 +670,9 @@ const enUS = {
     markAsRead: 'Mark as Read',
     markAsReadSuccess: 'Marked as read',
     markAsReadFailed: 'Mark as read failed',
-    filterByComponent: 'Component',
+    filterByComponent: 'Plugin Component',
+    filterByComponentHint:
+      'Plugin components are the capability types a plugin provides — Tool, Command, EventListener, etc. Filter by component to show only plugins offering that capability.',
     allComponents: 'All Components',
     componentName: {
       Tool: 'Tool',

web/src/i18n/locales/zh-Hans.ts

@@ -643,7 +643,9 @@ const zhHans = {
     markAsRead: '已读',
     markAsReadSuccess: '已标记为已读',
     markAsReadFailed: '标记为已读失败',
-    filterByComponent: '组件',
+    filterByComponent: '插件组件',
+    filterByComponentHint:
+      '插件组件是插件提供的能力类型，如工具（Tool）、命令（Command）、事件监听器（EventListener）等。按组件筛选可只看提供对应能力的插件。',
     allComponents: '全部组件',
     componentName: {
       Tool: '工具',