fix: Update MAVLink connection string from UDP to TCP for SITL.

src/mavlink_bridge.py

@@ -64,7 +64,7 @@ class MAVLinkCommander:
     Provides methods for arming, disarming, mode changes, and flight commands.
     """
     
-    def __init__(self, connection_string: str = "udpin:127.0.0.1:14550"):
+    def __init__(self, connection_string: str = "tcp:127.0.0.1:5760"):
         """
         Initialize MAVLink commander.