refactor: project restructuring - migrate to modular directory layout

- Move root-level docs into docs/ directory
- Move config files into config/ directory
- Move docker files into docker/ directory
- Move test scripts into tests/ directory
- Remove .env from tracking (use .env.example as template)
- Remove .venv/ from tracking (use requirements.txt)
- Add Vue3 frontend app (vue-app/)
- Add new routes: upload, user_templates, meeting_minutes, etc.
- Add database migrations for prompt_template additions
- Fix load_dotenv() to use absolute path for Flask reloader compatibility

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/create_favorites_table.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+"""
+创建收藏表的数据库迁移脚本
+"""
+from src.flask_prompt_master import create_app, db
+from src.flask_prompt_master.models.favorites import Favorite
+
+def create_favorites_table():
+    """创建收藏表"""
+    app = create_app()
+    
+    with app.app_context():
+        try:
+            # 创建表
+            db.create_all()
+            print("✅ 收藏表创建成功！")
+            
+            # 验证表是否存在
+            from sqlalchemy import inspect
+            inspector = inspect(db.engine)
+            tables = inspector.get_table_names()
+            if 'favorites' in tables:
+                print("✅ 验证成功：favorites表已存在")
+            else:
+                print("❌ 验证失败：favorites表不存在")
+                
+        except Exception as e:
+            print(f"❌ 创建收藏表失败：{str(e)}")
+
+if __name__ == '__main__':
+    create_favorites_table()