ensure parent directory exists in deploy script

Add mkdir -p to create parent directory if it doesn't exist. This allows
deploying to any path without requiring manual directory creation.

Example:
  ./deploy.sh /home/user/testing/jrunner

Now works even if /home/user/testing doesn't exist yet.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

deploy.sh

@@ -9,6 +9,7 @@ echo "Building jrunner..."
 
 echo "Deploying to ${DEPLOY_DIR}..."
 sudo rm -rf "${DEPLOY_DIR}"
+sudo mkdir -p "$(dirname "${DEPLOY_DIR}")"
 sudo unzip jrunner/build/distributions/jrunner.zip -d "$(dirname "${DEPLOY_DIR}")"
 
 # Only create symlink for default location