Improve setup script with better error handling and PATH persistence

Co-authored-by: g3force <779094+g3force@users.noreply.github.com>

Author: Copilot

.github/copilot/setup.sh

@@ -6,10 +6,19 @@ echo "Setting up Copilot development environment..."
 # Install uv (version matching GitHub Actions)
 echo "Installing uv..."
 curl -LsSf https://astral.sh/uv/0.10.2/install.sh | sh
+
+# Source uv environment to make it available in the current shell
+if [ -f "$HOME/.local/bin/env" ]; then
+    . "$HOME/.local/bin/env"
+fi
 export PATH="$HOME/.local/bin:$PATH"
 
 # Verify uv installation
-uv --version
+echo "Verifying uv installation..."
+if ! uv --version; then
+    echo "ERROR: uv installation failed or uv is not in PATH"
+    exit 1
+fi
 
 # Install Python and dependencies
 echo "Installing dependencies..."