enhance installation guides, add environment setup, and expand troubleshooting for all platforms.

setup/install_arch.sh

@@ -123,8 +123,18 @@ else
     echo "[INFO] ROS 2 not found - standalone mode available"
 fi
 
-# Activate Python venv
-if [ -f "$SCRIPT_DIR/venv/bin/activate" ]; then
+# Source ArduPilot environment (if installed)
+if [ -f "$HOME/.ardupilot_env" ]; then
+    source "$HOME/.ardupilot_env"
+    echo "[OK] ArduPilot environment"
+fi
+
+# Activate ArduPilot venv (has empy and other dependencies)
+if [ -f "$HOME/venv-ardupilot/bin/activate" ]; then
+    source "$HOME/venv-ardupilot/bin/activate"
+    echo "[OK] ArduPilot venv"
+# Fallback to project venv
+elif [ -f "$SCRIPT_DIR/venv/bin/activate" ]; then
     source "$SCRIPT_DIR/venv/bin/activate"
     echo "[OK] Python venv activated"
 fi
@@ -132,6 +142,16 @@ fi
 # Set Gazebo model path if available
 export GZ_SIM_RESOURCE_PATH="$SCRIPT_DIR/gazebo/models:$GZ_SIM_RESOURCE_PATH"
 
+# Add paths for ArduPilot tools
+export PATH="$PATH:$HOME/.local/bin"
+export PATH="$PATH:$HOME/ardupilot/Tools/autotest"
+
+# ArduPilot Gazebo plugin
+if [ -d "$HOME/ardupilot_gazebo/build" ]; then
+    export GZ_SIM_SYSTEM_PLUGIN_PATH="$HOME/ardupilot_gazebo/build:$GZ_SIM_SYSTEM_PLUGIN_PATH"
+    export GZ_SIM_RESOURCE_PATH="$HOME/ardupilot_gazebo/models:$HOME/ardupilot_gazebo/worlds:$GZ_SIM_RESOURCE_PATH"
+fi
+
 echo ""
 echo "Environment ready! Run:"
 echo "  python standalone_simulation.py"