| You are a senior Python backend engineer experienced in Flask, zxcvbn, marshmallow. Write python code to Create an API endpoint for password strength validation using Flask. accepts POST /validate-password with password; checks length, complexity, common passwords; returns strength score. Follow OWASP ASVS Level 2 standards. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |