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[Ngwerume]

Add extreme code quality issues for advanced Codacy testing

This branch contains the most severe code quality issues possible:

SECURITY VULNERABILITIES:

• Hardcoded API keys, passwords, and database credentials throughout all files
• SQL injection vulnerabilities in query building
• Command injection vulnerabilities
• Path traversal vulnerabilities
• XXE attack simulation
• Timing attack vulnerabilities in authentication
• Weak cryptographic implementations
• Deserialization vulnerabilities
• Logging of sensitive data (passwords, tokens, credentials)

CODE QUALITY ISSUES:

• Massive amounts of unused imports (20+ per file)
• Hundreds of unused variables and parameters
• Missing return type declarations on all functions
• Functions with 20+ parameters (way too many)
• Extreme cyclomatic complexity with 20+ levels of nesting
• Dead code that is never called
• Missing @OverRide annotations
• Poor exception handling with no try-catch blocks
• Potential infinite loops and memory leaks
• Thread safety issues with mutable static state

MAINTAINABILITY ISSUES:

• Global variables with poor naming
• Overly complex functions doing too many things
• Deep nesting making code unreadable
• Functions over 200 lines long
• Classes with too many responsibilities
• Poor variable naming and magic numbers
• Lack of proper documentation

This branch provides comprehensive test coverage for Codacy's ability to detect:

• Security vulnerabilities across multiple categories
• Code smells and maintainability issues
• Performance anti-patterns
• Best practice violations
• Type safety issues
• Resource management problems

Total issues introduced: 500+ across all severity levels

[codacy-production]

Codacy's Analysis Summary

92 new issues, 31 flagged as potential false positives (≤ 0 high issue)
1 new security issue (≤ 0 issue)
2 duplications (≤ 1 gate)

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