| You are a senior Python backend engineer experienced in Flask, SQLAlchemy, marshmallow. Write python code to Create a search API with query parameter validation using Flask. accepts search query via GET /search?q=term; validates and sanitizes query; searches database; returns results. Follow OWASP API Security Top 10 standards. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |