Remove dead code, fix SQL injection, clean unused assets

[Copilot]

Eliminated technical debt across the repository: removed broken/incomplete code, fixed security vulnerability, and cleaned up orphaned configuration.

Removed Dead Code

• Python: Empty test file, unused point.py example
• Rust: Broken server.rs (missing tcp module dependency)
• COBOL: Demo CUSTPROC.cbl file
• Terraform: Empty iac.tf file
• Scripts: Two unused utility scripts (find_json_string.py, report_bofa_emu_versions.py)
• Docs: Three stub files with no meaningful content
• Assets: Unreferenced 84KB cloud_infra.png

Security Fix

Fixed SQL injection in python/sql.py - replaced string concatenation with parameterized queries:

# Before
query = "SELECT * FROM users WHERE username = '" + username + "'"
cursor.execute(query)

# After  
query = "SELECT * FROM users WHERE username = %s"
cursor.execute(query, (username,))

Cleanup

• Removed unused imports from DotnetApp/Program.cs
• Deleted language instructions for removed Rust/C code
• Updated README references to existing files
• Removed 5 empty directories

Impact: -540 LOC, -84KB assets, 1 critical security fix

Original prompt

Clean up this repo for me

Custom agent used: Janitor
Perform janitorial tasks on any codebase including cleanup, simplification, and tech debt remediation.

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[sonarqubecloud]

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[sonarqubecloud]

Quality Gate failed

Failed conditions
E Security Rating on New Code (required ≥ A)

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