[LOW] Missing Security Tests

[actuallyrizzn]

Issue

No tests for input validation, injection attacks, rate limiting behavior, or error handling edge cases.

Location: Test files

Problems

• No tests for input validation
• No tests for injection attacks
• No tests for rate limiting behavior
• No tests for error handling edge cases

Recommended Fix

• Add security-focused test cases
• Test with malicious inputs
• Test error handling paths

[actuallyrizzn]

Complexity Ranking: ���� Complex (4/5) - ~8-10 hours to implement