sync: 同步服务器最新代码 (2026-01-27)

更新内容：
- 后端 AI 服务优化（能力分析、知识点解析等）
- 前端考试和陪练界面更新
- 修复多个 prompt 和 JSON 解析问题
- 更新 Coze 语音客户端

backend/app/services/ai/prompts/ability_analysis_prompts.py

@@ -213,3 +213,8 @@ PRIORITY_LEVELS = ["high", "medium", "low"]
 
 
 
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backend/app/services/ai/prompts/answer_judge_prompts.py

@@ -46,3 +46,8 @@ INCORRECT_KEYWORDS = ["错误", "incorrect", "false", "no", "wrong", "不正确"
 
 
 
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backend/app/services/ai/prompts/course_chat_prompts.py

@@ -72,3 +72,8 @@ DEFAULT_TEMPERATURE = 0.7
 
 
 
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backend/app/services/ai/prompts/exam_generator_prompts.py

@@ -254,8 +254,11 @@ QUESTION_SCHEMA = {
                 "description": "知识点ID"
             },
             "correct": {
-                "type": "string",
-                "description": "正确答案"
+                "oneOf": [
+                    {"type": "string"},
+                    {"type": "array", "items": {"type": "string"}}
+                ],
+                "description": "正确答案（单选/判断/填空为字符串，多选为数组）"
             },
             "analysis": {
                 "type": "string",
@@ -298,3 +301,8 @@ MAX_DIFFICULTY_LEVEL = 5
 
 
 
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backend/app/services/ai/prompts/knowledge_analysis_prompts.py

@@ -146,3 +146,8 @@ DEFAULT_KNOWLEDGE_TYPE = "理论知识"
 
 
 
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backend/app/services/ai/prompts/practice_analysis_prompts.py

@@ -191,3 +191,8 @@ ANNOTATION_TAGS = [
 
 
 
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backend/app/services/ai/prompts/practice_scene_prompts.py

@@ -190,3 +190,8 @@ DEFAULT_DIFFICULTY = "intermediate"
 
 
 
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