Code reorganization and Drone Logic Update

setup/install_ardupilot.sh

@@ -131,8 +131,8 @@ else
     echo "[OK] Environment already configured"
 fi
 
-# Install MAVProxy
-pip3 install --user pymavlink mavproxy
+# Install MAVProxy and Python dependencies
+pip3 install --user pymavlink mavproxy pexpect
 
 # -----------------------------------------------------------------------------
 # Verification

setup/install_ubuntu.sh

@@ -151,7 +151,7 @@ pip install --upgrade pip
 if [ -f "$PROJECT_ROOT/requirements.txt" ]; then
     pip install -r "$PROJECT_ROOT/requirements.txt"
 else
-    pip install pybullet numpy pillow opencv-python pymavlink
+    pip install pybullet numpy pillow opencv-python pymavlink pexpect
 fi
 
 echo "[INFO] Python packages installed"