What I Did

• Added validateQuery.js in src/ to ensure SQL queries are validated before execution.
• Added validateQuery.test.js in test/ to verify detection of unsafe SQL queries.
• This helps detect and prevent potentially destructive SQL operations such as DROP, DELETE, ALTER, and TRUNCATE.

Why This Change

• Databases are vulnerable to unsafe or unintended SQL operations.
• Adding this validation layer promotes safer query execution practices.
• This directly supports the repository’s focus on database and SQL fundamentals.

How It Helps

• Prevents unsafe queries from running unintentionally.
• Demonstrates safe database practices.
• Adds a testable, extendable utility to the project.

✅ Safe to merge — this PR adds new functionality without altering existing project behavior.