Remove screen override timeout to allow drawing to persist indefinitely

mcp_server.py

@@ -16,7 +16,6 @@ class MCPServer:
         self.sock = None
         self.active_led_mode = "off" # static, breath, rainbow, off
         self.override_active = False
-        self.override_timeout = 0
 
     def start(self, port=80):
         """Starts the TCP server non-blockingly."""
@@ -276,7 +275,6 @@ class MCPServer:
         """Executes hardware actions depending on the called tool name."""
         if name == "clear_screen":
             self.override_active = True
-            self.override_timeout = time.ticks_ms() + 30000 # 30-sec override
             color = int(args.get("color", 0))
             self.display.clear(color)
             self.display.show()
@@ -284,7 +282,6 @@ class MCPServer:
             
         elif name == "draw_text":
             self.override_active = True
-            self.override_timeout = time.ticks_ms() + 30000 # 30-sec override
             text = str(args.get("text", ""))
             x = int(args.get("x", 10))
             y = int(args.get("y", 10))
@@ -343,7 +340,6 @@ class MCPServer:
                 
         elif name == "draw_image":
             self.override_active = True
-            self.override_timeout = time.ticks_ms() + 30000 # 30-sec override
             
             pbm_b64 = args.get("pbm_base64")
             x = int(args.get("x", 0))