fix: address multiple code review issues across platform components

- Fix maxUsers input validation to prevent negative values and handle NaN cases
- Enhance error handling in fetchCompany with detailed logging and context
- Implement actual cache invalidation logic with pattern-based clearing
- Add comprehensive cache optimization with memory management
- Remove unsafe type casting in performance history analytics
- Improve form validation and authentication patterns
- Update documentation to mask sensitive data in examples

docs/admin-audit-logs-api.md

@@ -65,8 +65,8 @@ const data = await response.json();
         "severity": "HIGH",
         "userId": "user-456",
         "companyId": "company-789",
-        "ipAddress": "192.168.1.100",
-        "userAgent": "Mozilla/5.0...",
+        "ipAddress": "192.168.1.***",
+        "userAgent": "Mozilla/5.0 (masked)",
         "timestamp": "2024-01-01T12:00:00Z",
         "description": "Failed login attempt",
         "metadata": {