收口个人中心昵称编辑图标按钮

RpgEntryHomeView 的昵称编辑入口改用 PlatformIconButton 并保留局部紧凑样式
补充昵称编辑入口复用共享按钮 class 的测试断言
同步 PlatformUiKit 收口计划与 .hermes 决策记录

src/components/rpg-entry/RpgEntryHomeView.tsx

@@ -6710,14 +6710,12 @@ export function RpgEntryHomeView({
                     <div className="platform-profile-header__name truncate text-[18px] font-black leading-tight text-[var(--platform-text-strong)]">
                       {authUi.user.displayName}
                     </div>
-                    <button
-                      type="button"
+                    <PlatformIconButton
+                      label="修改昵称"
+                      icon={<Pencil className="h-3.5 w-3.5" />}
                       onClick={openNicknameModal}
                       className="platform-profile-edit-button"
-                      aria-label="修改昵称"
-                    >
-                      <Pencil className="h-3.5 w-3.5" />
-                    </button>
+                    />
                   </div>
                   <div className="platform-profile-header__code mt-2 flex flex-wrap items-center gap-2 text-[12px] text-[var(--platform-text-base)]">
                     <span>陶泥号： {publicUserCode}</span>