feat(图片管理): 添加图片尺寸配置支持

在 config.toml 中新增 image_manager 配置块，包含图片高度和宽度设置
修改 ImageManager 类以使用配置中的尺寸，替代硬编码值
添加 ImageManagerModel 配置模型并集成到全局配置中

core/config_loader.py

@@ -7,7 +7,7 @@ from pathlib import Path
 
 import tomllib
 from pydantic import ValidationError
-from .config_models import ConfigModel, NapCatWSModel, BotModel, RedisModel, DockerModel
+from .config_models import ConfigModel, NapCatWSModel, BotModel, RedisModel, DockerModel, ImageManagerModel
 from .utils.logger import ModuleLogger
 from .utils.exceptions import ConfigError, ConfigNotFoundError, ConfigValidationError
 
@@ -114,6 +114,13 @@ class Config:
         获取 Docker 配置
         """
         return self._model.docker
+    
+    @property
+    def image_manager(self) -> ImageManagerModel:
+        """
+        获取图片生成管理器配置
+        """
+        return self._model.image_manager
 
 
 # 实例化全局配置对象

core/config_models.py

@@ -49,6 +49,13 @@ class DockerModel(BaseModel):
     client_cert_path: Optional[str] = None
     client_key_path: Optional[str] = None
 
+class ImageManagerModel(BaseModel):
+    """
+    对应 `config.toml` 中的 `[image_manager]` 配置块。
+    """
+    image_height: int = 1920
+    image_width: int = 1080
+
 
 class ConfigModel(BaseModel):
     """
@@ -58,3 +65,6 @@ class ConfigModel(BaseModel):
     bot: BotModel
     redis: RedisModel
     docker: DockerModel
+    image_manager: ImageManagerModel
+
+

core/managers/image_manager.py

@@ -12,6 +12,7 @@ from jinja2 import Template
 from .browser_manager import browser_manager
 from ..utils.logger import logger
 from ..utils.singleton import Singleton
+from ..config_loader import global_config
 
 class ImageManager(Singleton):
     """
@@ -73,8 +74,8 @@ class ImageManager(Singleton):
                 return None
 
             try:
-                width = 1920
-                height = 1080
+                width = global_config.image_manager.image_width
+                height = global_config.image_manager.image_height
                 await page.set_viewport_size({"width": width, "height": height})
                 
                 # 加载内容