feat(template-wizard): require library brand before favoriting competitors

Drop the implicit brand-creation path in handleFavoriteCompetitor and
just refuse to save a competitor until the user has explicitly chosen a
library brand; clear saved state on competitor drafts when the brand is
unset. Also enforce the configured custom-outline label length cap and
auto-focus newly added outline nodes for faster keyboard editing. New
i18n strings cover the brand-required and outline-length messages plus
the updated competitor hint.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/i18n/messages/zh-CN.ts

@@ -91,7 +91,6 @@ const zhCN = {
   },
   auth: {
     welcomeBack: "欢迎回来",
-    tenantAdminLogin: "租户后台登录",
     loginAndEnter: "登录并进入工作台",
     email: "邮箱",
     loginIdentifier: "手机号 / 邮箱",
@@ -596,7 +595,7 @@ const zhCN = {
       publishing: "发布中",
       success: "发布成功",
       failed: "发布失败",
-      partial_success: "部分发布",
+      partial_success: "部分成功",
       published: "发布成功",
       publish_success: "发布成功",
       publish_failed: "发布失败",
@@ -781,7 +780,7 @@ const zhCN = {
         brandFlow: "品牌可直接输入，也可以从品牌库带入。点击分析后，AI 会补充关键词、竞品和标题建议。",
         brandSummaryPlaceholder: "AI 分析后会在这里补充品牌简介、差异点和适合切入的内容角度。",
         keywords: "支持直接输入，也支持复用品牌词库里的关键词。AI 分析结果会自动补充到这里。",
-        competitors: "竞品支持手动编辑、追加和收藏到品牌词库。AI 分析会尽量补齐候选竞品。",
+        competitors: "竞品支持手动编辑、追加；只有从品牌库选择品牌后，才可以收藏到品牌词库。AI 分析会尽量补齐候选竞品。",
         competitorEmptyEditable: "还没有竞品，先手动添加一条或点击分析让 AI 自动补齐。",
         templateFields: "这里保留当前模板自己的补充字段，用来约束 AI 生成角度。",
         titleSelection: "下一步前会由 AI 给出 5 个更合适的标题候选，你可以在这里挑选或改写。",
@@ -874,6 +873,8 @@ const zhCN = {
         missingReviewIntroHook: "请先选择一个评测引言钩子",
         missingOutline: "请至少选择一个文章结构段落",
         missingGeneratedOutline: "请先生成并确认文章大纲",
+        customOutlineTooLong: "自定义结构不能超过 {count} 个字",
+        selectBrandBeforeFavorite: "请先从品牌库选择品牌后再收藏竞品",
         missingCompetitorName: "至少需要填写竞品名称后才能收藏",
         savedCompetitor: "竞品已收藏到品牌词库",
         assistReady: "AI 分析已完成，可以继续调整内容。",