优化：用户名更改接口

src/api/user.ts

@@ -146,12 +146,12 @@ export async function setSelfHeaderImg(
 
 /**
  * PUT /user/setSelfUsername
- * 修改自身用户名
- * Body: { username: string }
+ * 修改自身昵称
+ * Body: { nickName: string }
  * 需鉴权（ApiKeyAuth）
  */
 export interface ChangeSelfUsernameReq {
-  username: string
+  nickName: string
 }
 
 export async function setSelfUsername(

src/stores/user.ts

@@ -60,6 +60,16 @@ export const useUserStore = defineStore('user', () => {
   const user = ref<UserInfo | null>(stored?.user ?? null)
 
   const isLoggedIn = computed(() => !!token.value && !!user.value)
+  /** 显示用用户名：优先 nickName，其次 userName */
+  const displayName = computed(() => {
+    const u = user.value
+    if (!u) return ''
+    const nick = (u.nickName ?? (u as Record<string, unknown>).nickname) as string | undefined
+    if (typeof nick === 'string' && nick.trim()) return nick.trim()
+    const name = (u.userName ?? (u as Record<string, unknown>).username) as string | undefined
+    if (typeof name === 'string' && name.trim()) return name.trim()
+    return ''
+  })
   const avatarUrl = computed(() => {
     const img = user.value?.headerImg
     if (!img) return ''
@@ -220,6 +230,7 @@ export const useUserStore = defineStore('user', () => {
     token,
     user,
     isLoggedIn,
+    displayName,
     avatarUrl,
     balance,
     setUser,

src/views/Profile.vue

@@ -195,7 +195,8 @@ const userNameRaw = computed(() => {
   const v = rawUser.value.userName
   return typeof v === 'string' && v.trim() ? v.trim() : ''
 })
-const displayName = computed(() => userNameRaw.value || t('profile.defaultName'))
+/** 显示用：统一取 nickName（userStore.displayName） */
+const displayName = computed(() => userStore.displayName || t('profile.defaultName'))
 const userIdText = computed(() => {
   const uid = rawUser.value.id ?? rawUser.value.ID
   if (uid == null || uid === '') return '--'
@@ -262,7 +263,7 @@ async function copyWalletAddress() {
 
 function onEditProfile() {
   editNameDialogOpen.value = true
-  editingName.value = userNameRaw.value
+  editingName.value = userStore.displayName || userNameRaw.value
   nameError.value = null
 }
 
@@ -311,7 +312,7 @@ async function saveName() {
       return
     }
 
-    const res = await setSelfUsername(authHeaders, { username: trimmed })
+    const res = await setSelfUsername(authHeaders, { nickName: trimmed })
     if (res.code !== 0 && res.code !== 200) {
       const errMsg = res.msg || t('profile.nameSaveFailed')
       nameError.value = errMsg
@@ -319,7 +320,7 @@ async function saveName() {
       return
     }
 
-    // 接口成功后刷新用户信息，确保 userName/headerImg 等字段一致
+    // 接口成功后刷新用户信息，确保 nickName/headerImg 等字段一致
     await userStore.fetchUserInfo()
     toastStore.show(t('profile.nameSaved'))
     editNameDialogOpen.value = false