重构目录结构：调整项目布局

core/state.py

@@ -0,0 +1,27 @@
+# core/state.py
+class SystemState:
+    def __init__(self):
+        # 系统运行状态
+        self.running = False
+
+        # 下料控制相关
+        self.upper_door_position = 'default'  # default(在搅拌楼下接料), over_lower(在下料斗上方), returning(返回中)
+        self.lower_feeding_stage = 0  # 0:未下料, 1:第一阶段, 2:第二阶段, 3:第三阶段, 4:等待模具车对齐
+        self.lower_feeding_cycle = 0  # 下料斗下料循环次数
+        self.upper_feeding_count = 0  # 上料斗已下料次数
+
+        # 重量相关
+        self.last_upper_weight = 0
+        self.last_lower_weight = 0
+        self.last_weight_time = 0
+
+        # 错误计数
+        self.upper_weight_error_count = 0
+        self.lower_weight_error_count = 0
+
+        # 视觉系统状态
+        self.angle_control_mode = "normal"  # 角度控制模式: normal, reducing, maintaining, recovery
+        self.overflow_detected = False  # 堆料检测
+        self.door_opening_large = False  # 夹角
+        self.vehicle_aligned = False  # 模具车是否对齐
+        self.last_angle = None  # 上次检测角度