feat(life): add Life Post reaction users modal and API

Add GET /api/life-posts/:id/reactions endpoint with pagination
Add LifeReactionUsersModal to view and filter reaction users
Make reaction summaries clickable in feeds, details, and profiles

system-wordings.ts

@@ -841,6 +841,12 @@ export const systemWordingMessages = {
         reactionThanks: 'Thanks',
         chooseReaction: 'Choose reaction',
         reactionMenu: 'Reaction menu',
+        reactionUsersTitle: 'Reactions',
+        reactionUsersSubtitle: 'People who reacted to this Life post.',
+        reactionFiltersLabel: 'Reaction types',
+        allReactions: 'All reactions',
+        reactionUsersEmpty: 'No reactions yet',
+        loadMoreReactions: 'Load more reactions',
         removeReaction: 'Remove reaction',
         reactionFailed: 'Reaction failed',
         postMeta: 'Post details',
@@ -2072,6 +2078,12 @@ export const systemWordingMessages = {
         reactionThanks: '感谢',
         chooseReaction: '选择互动',
         reactionMenu: '互动菜单',
+        reactionUsersTitle: '互动',
+        reactionUsersSubtitle: '查看对这条 Life 动态做出互动的用户。',
+        reactionFiltersLabel: '互动类型',
+        allReactions: '全部互动',
+        reactionUsersEmpty: '暂无互动',
+        loadMoreReactions: '加载更多互动',
         removeReaction: '取消互动',
         reactionFailed: '互动失败',
         postMeta: '动态信息',