AIRA-73: Security Hardening Implementation

[learn-design-develop]

👤 User Story

As a security engineer, I need essential security hardening across all components for production deployment.

🎯 Rationale

Basic security is critical for OSS adoption.

✅ Acceptance Criteria

• Input validation across all API endpoints
• SQL injection prevention and parameterization
• Configure secure headers (CORS, CSP, HSTS)
• Add audit logging for security events
• Security validation tests

📋 Metadata

• Status: MVP

• Category: Security

• Week: Week 6

• Complexity: Low

• Critical Path: No

• Dependencies: AIRA-34, AIRA-35, AIRA-36, AIRA-38

---

Original Ticket: #73
Phase 1 MVP Tracking Issue