fix(settlement): 要求封盘后才能结算并优化预览流程

封盘前禁止录入比分与生成预览；待结算未确认前可解除封盘。

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/shared/src/api-errors.ts

@@ -129,6 +129,16 @@ export const API_ERROR_MESSAGES = {
     'en-US': 'Match cannot be reopened in current status',
     'ms-MY': 'Perlawanan tidak boleh dibuka semula dalam status semasa',
   },
+  MATCH_NOT_SETTLEABLE: {
+    'zh-CN': '当前状态不可确认结算',
+    'en-US': 'Match cannot be settled in current status',
+    'ms-MY': 'Perlawanan tidak boleh diselesaikan dalam status semasa',
+  },
+  MATCH_MUST_CLOSE_FOR_SETTLEMENT: {
+    'zh-CN': '请先封盘后再结算',
+    'en-US': 'Close betting before settlement',
+    'ms-MY': 'Tutup pertaruhan sebelum penyelesaian',
+  },
   MATCH_REOPEN_KICKOFF_REQUIRED: {
     'zh-CN': '开赛时间已过，请设置新的未来开赛时间',
     'en-US': 'Kickoff has passed; set a new future start time',