Update configuration and enhance railway signal functionality

- Adjust angle parameters for switches in config.json
- Implement semaphore loading in main.py
- Refactor Lamp modes to use integers in railway_signal.py
- Add set_mode method for Lamp class to control lamp states

railway_signal.py

@@ -28,11 +28,12 @@ class Lamp:
     - blink: мигает (переключение ON/OFF с периодом period_ms)
     """
 
-    MODE_OFF = "off"
-    MODE_ON = "on"
-    MODE_BLINK = "blink"
+    ERROR = 1
+    MODE_OFF = 2
+    MODE_ON = 3
+    MODE_BLINK = 4
 
-    def __init__(self, signal, lamp_id: int, pixel_index: int, rgba):
+    def __init__(self, signal: "RailwaySignal", lamp_id: int, pixel_index: int, rgba):
         self._signal = signal
         self.id = lamp_id
         self.pixel = pixel_index
@@ -52,6 +53,9 @@ class Lamp:
     def blink(self, period_ms: int = 500):
         self._signal._set_lamp_mode(self, Lamp.MODE_BLINK, period_ms=period_ms)
 
+    def set_mode(self, mode: int, *, period_ms: int = 500):
+        self._signal._set_lamp_mode(self, mode, period_ms=period_ms)
+
 
 class RailwaySignal:
     """Контейнер ламп светофора.
@@ -264,7 +268,7 @@ class RailwaySignal:
                 return True
         return False
 
-    def _set_lamp_mode(self, lamp: Lamp, mode: str, *, period_ms: int = 500):
+    def _set_lamp_mode(self, lamp: Lamp, mode: int, *, period_ms: int = 500):
         if mode == Lamp.MODE_BLINK:
             lamp.mode = Lamp.MODE_BLINK
             lamp._blink_period_ms = int(period_ms)