refactor: added config file and moved constants

- Moved hardcoded configuration constants to a dedicated config.py file.
- Created VideoConfig, AudioConfig, MainConfig, and Settings classes in config.py

ref: N25B-236

src/robot_interface/endpoints/main_receiver.py

@@ -3,9 +3,10 @@ import zmq
 from robot_interface.endpoints.receiver_base import ReceiverBase
 from robot_interface.state import state
 
+from robot_interface.core.config import settings
 
 class MainReceiver(ReceiverBase):
-    def __init__(self, zmq_context, port=5555):
+    def __init__(self, zmq_context, port= settings.agent_settings.main_receiver_port):
         """
         The main receiver endpoint, responsible for handling ping and negotiation requests.