refactor(api): 重构API蓝图结构按功能模块拆分

- 将原有的单一api蓝图拆分为多个独立蓝图（torrent、book、music、file、video、image）
- 每个蓝图负责对应的功能模块，实现更好的代码组织和维护性
- 更新应用初始化文件中的蓝图注册方式，使用新的模块化结构
- 修改前端API调用路径，将/files/rename调整为/file/rename
- 在torrent服务中新增按名称查询功能和相关处理逻辑

app/__init__.py

@@ -2,6 +2,7 @@ from flask import Flask
 from flask_cors import CORS
 from .extensions import db, migrate
 from .config import DevelopmentConfig, ProductionConfig, TestingConfig
+from .blueprints import  torrent_bp, book_bp, music_bp, file_bp, video_bp, image_bp
 
 
 def create_app(config_name="development"):
@@ -20,7 +21,11 @@ def create_app(config_name="development"):
     db.init_app(app)
     migrate.init_app(app, db)
 
-    from .blueprints.api import bp as api_bp
-    app.register_blueprint(api_bp, url_prefix='/api')
+    app.register_blueprint(torrent_bp.bp, url_prefix='/api/torrent')
+    app.register_blueprint(book_bp.bp, url_prefix='/api/book')
+    app.register_blueprint(music_bp.bp, url_prefix='/api/music')
+    app.register_blueprint(file_bp.bp, url_prefix='/api/file')
+    app.register_blueprint(video_bp.bp, url_prefix='/api/video')
+    app.register_blueprint(image_bp.bp, url_prefix='/api/image')
 
-    return app
+    return app