fix: avoid opencode structured output session breakage

Replace server-enforced structured output with local JSON parsing for Git generation
Render generated commit and PR JSON responses as compact chat cards
Tighten generation prompts while preserving active session context

packages/ui/src/lib/i18n/messages/zh-CN.ts

@@ -1419,6 +1419,13 @@ export const dict: Record<I18nKey, string> = {
   'chat.messageBody.actions.saveAsPlan': '保存为计划',
   'chat.messageBody.actions.startNewSession': '基于此回答开始新会话',
   'chat.messageBody.actions.startNewMultiRun': '基于此回答开始新的多运行',
+  'chat.generatedResult.actions.copy': '复制',
+  'chat.generatedResult.actions.copied': '已复制',
+  'chat.generatedResult.commit.title': '生成的提交消息',
+  'chat.generatedResult.commit.highlights': '要点',
+  'chat.generatedResult.pullRequest.title': '生成的 Pull Request',
+  'chat.generatedResult.pullRequest.titleLabel': '标题',
+  'chat.generatedResult.pullRequest.bodyLabel': '正文',
   'chat.messageBody.tts.stopSpeaking': '停止朗读',
   'chat.messageBody.tts.readAloud': '朗读',
   'chat.messageBody.tts.readAloudWithProvider': '朗读（{provider} 语音）',