feat: 初始化考培练系统项目

- 从服务器拉取完整代码
- 按框架规范整理项目结构
- 配置 Drone CI 测试环境部署
- 包含后端(FastAPI)、前端(Vue3)、管理端

技术栈: Vue3 + TypeScript + FastAPI + MySQL

backend/app/services/ai/__init__.py

@@ -0,0 +1,151 @@
+"""
+AI 服务模块
+
+包含：
+- AIService: 本地 AI 服务（支持 4sapi + OpenRouter 降级）
+- LLM JSON Parser: 大模型 JSON 输出解析器
+- KnowledgeAnalysisServiceV2: 知识点分析服务（Python 原生实现）
+- ExamGeneratorService: 试题生成服务（Python 原生实现）
+- CourseChatServiceV2: 课程对话服务（Python 原生实现）
+- PracticeSceneService: 陪练场景准备服务（Python 原生实现）
+- AbilityAnalysisService: 智能工牌能力分析服务（Python 原生实现）
+- AnswerJudgeService: 答案判断服务（Python 原生实现）
+- PracticeAnalysisService: 陪练分析报告服务（Python 原生实现）
+"""
+
+from .ai_service import (
+    AIService,
+    AIResponse,
+    AIConfig,
+    AIServiceError,
+    AIProvider,
+    DEFAULT_MODEL,
+    MODEL_ANALYSIS,
+    MODEL_CREATIVE,
+    MODEL_IMAGE_GEN,
+    quick_chat,
+)
+
+from .llm_json_parser import (
+    parse_llm_json,
+    parse_with_fallback,
+    safe_json_loads,
+    clean_llm_output,
+    diagnose_json_error,
+    validate_json_schema,
+    ParseResult,
+    JSONParseError,
+    JSONUnrecoverableError,
+)
+
+from .knowledge_analysis_v2 import (
+    KnowledgeAnalysisServiceV2,
+    knowledge_analysis_service_v2,
+)
+
+from .exam_generator_service import (
+    ExamGeneratorService,
+    ExamGeneratorConfig,
+    exam_generator_service,
+    generate_exam,
+)
+
+from .course_chat_service import (
+    CourseChatServiceV2,
+    course_chat_service_v2,
+)
+
+from .practice_scene_service import (
+    PracticeSceneService,
+    PracticeScene,
+    PracticeSceneResult,
+    practice_scene_service,
+    prepare_practice_knowledge,
+)
+
+from .ability_analysis_service import (
+    AbilityAnalysisService,
+    AbilityAnalysisResult,
+    AbilityDimension,
+    CourseRecommendation,
+    ability_analysis_service,
+)
+
+from .answer_judge_service import (
+    AnswerJudgeService,
+    JudgeResult,
+    answer_judge_service,
+    judge_answer,
+)
+
+from .practice_analysis_service import (
+    PracticeAnalysisService,
+    PracticeAnalysisResult,
+    ScoreBreakdownItem,
+    AbilityDimensionItem,
+    DialogueAnnotation,
+    Suggestion,
+    practice_analysis_service,
+    analyze_practice_session,
+)
+
+__all__ = [
+    # AI Service
+    "AIService",
+    "AIResponse",
+    "AIConfig",
+    "AIServiceError",
+    "AIProvider",
+    "DEFAULT_MODEL",
+    "MODEL_ANALYSIS",
+    "MODEL_CREATIVE",
+    "MODEL_IMAGE_GEN",
+    "quick_chat",
+    # JSON Parser
+    "parse_llm_json",
+    "parse_with_fallback",
+    "safe_json_loads",
+    "clean_llm_output",
+    "diagnose_json_error",
+    "validate_json_schema",
+    "ParseResult",
+    "JSONParseError",
+    "JSONUnrecoverableError",
+    # Knowledge Analysis V2
+    "KnowledgeAnalysisServiceV2",
+    "knowledge_analysis_service_v2",
+    # Exam Generator V2
+    "ExamGeneratorService",
+    "ExamGeneratorConfig",
+    "exam_generator_service",
+    "generate_exam",
+    # Course Chat V2
+    "CourseChatServiceV2",
+    "course_chat_service_v2",
+    # Practice Scene V2
+    "PracticeSceneService",
+    "PracticeScene",
+    "PracticeSceneResult",
+    "practice_scene_service",
+    "prepare_practice_knowledge",
+    # Ability Analysis V2
+    "AbilityAnalysisService",
+    "AbilityAnalysisResult",
+    "AbilityDimension",
+    "CourseRecommendation",
+    "ability_analysis_service",
+    # Answer Judge V2
+    "AnswerJudgeService",
+    "JudgeResult",
+    "answer_judge_service",
+    "judge_answer",
+    # Practice Analysis V2
+    "PracticeAnalysisService",
+    "PracticeAnalysisResult",
+    "ScoreBreakdownItem",
+    "AbilityDimensionItem",
+    "DialogueAnnotation",
+    "Suggestion",
+    "practice_analysis_service",
+    "analyze_practice_session",
+]