fix(ui): 修复某些情况下热重载配置失败的问题

原因是上下文初始化前就调用了 config.load() 导致报错。

kotonebot/backend/context/context.py

@@ -50,7 +50,7 @@ from kotonebot.backend.ocr import (
 from kotonebot.config.manager import load_config, save_config
 from kotonebot.config.base_config import UserConfig
 from kotonebot.backend.core import Image, HintBox
-from kotonebot.errors import KotonebotWarning
+from kotonebot.errors import ContextNotInitializedError, KotonebotWarning
 from kotonebot.backend.preprocessor import PreprocessorProtocol
 from kotonebot.primitives import Rect
 
@@ -719,14 +719,14 @@ class Forwarded:
         if name.startswith('_FORWARD_'):
             return object.__getattribute__(self, name)
         if self._FORWARD_getter is None:
-            raise ValueError(f"Forwarded object {self._FORWARD_name} called before initialization.")
+            raise ContextNotInitializedError(f"Forwarded object {self._FORWARD_name} called before initialization.")
         return getattr(self._FORWARD_getter(), name)
     
     def __setattr__(self, name: str, value: Any):
         if name.startswith('_FORWARD_'):
             return object.__setattr__(self, name, value)
         if self._FORWARD_getter is None:
-            raise ValueError(f"Forwarded object {self._FORWARD_name} called before initialization.")
+            raise ContextNotInitializedError(f"Forwarded object {self._FORWARD_name} called before initialization.")
         setattr(self._FORWARD_getter(), name, value)
 
 
@@ -974,7 +974,7 @@ def inject_context(
 ):
     global _c
     if _c is None:
-        raise RuntimeError('Context not initialized')
+        raise ContextNotInitializedError('Context not initialized')
     _c.inject(device=device, ocr=ocr, image=image, color=color, vars=vars, debug=debug, config=config)
 
 class ManualContextManager:

kotonebot/errors.py

@@ -30,4 +30,8 @@ class UnscalableResolutionError(KotonebotError):
         self.target_resolution = target_resolution
         self.screen_size = screen_size
         super().__init__(f'Cannot scale to target resolution {target_resolution}. '
-                         f'Screen size: {screen_size}')
+                         f'Screen size: {screen_size}')
+        
+class ContextNotInitializedError(KotonebotError):
+    def __init__(self, msg: str = 'Context not initialized'):
+        super().__init__(msg)

kotonebot/kaa/main/gr.py

@@ -16,11 +16,12 @@ import gradio as gr
 
 from kotonebot.kaa.main import Kaa
 from kotonebot.kaa.db import IdolCard
+from kotonebot.backend.context.context import vars
+from kotonebot.errors import ContextNotInitializedError
+from kotonebot.client.host import Mumu12Host, LeidianHost
 from kotonebot.config.manager import load_config, save_config
 from kotonebot.config.base_config import UserConfig, BackendConfig
 from kotonebot.backend.context import task_registry, ContextStackVars
-from kotonebot.backend.context.context import vars
-from kotonebot.client.host import Mumu12Host, LeidianHost
 from kotonebot.kaa.config import (
     BaseConfig, APShopItems, CapsuleToysConfig, ClubRewardConfig, PurchaseConfig, ActivityFundsConfig,
     PresentsConfig, AssignmentConfig, ContestConfig, ProduceConfig,
@@ -390,8 +391,8 @@ class KotoneBotUI:
         """获取暂停按钮的状态和交互性"""
         try:
             text = "恢复" if vars.flow.is_paused else "暂停"
-        except ValueError:
-            # ValueError: Forwarded object vars called before initialization.
+        except ContextNotInitializedError:
+            # ContextNotInitializedError: Forwarded object vars called before initialization.
             # TODO: vars.flow.is_paused 应该要可以在脚本正式启动前就能访问
             text = '未启动'
         # 如果正在停止过程中，禁用暂停按钮
@@ -417,7 +418,10 @@ class KotoneBotUI:
 
             # 重新加载 Context 中的配置数据
             from kotonebot.backend.context.context import config
-            config.load()
+            try:
+                config.load()
+            except ContextNotInitializedError:
+                pass
 
             logger.info("配置已成功重新加载")
             return True