What SANDHANA demonstrated

Built and verified a full legacy-service repair: fixed the wear calculation so nearly-worn cars are flagged correctly, handled missing service history without crashing the nightly report, corrected the fleet average, and preserved the 15,000 km / 80% business rules. Also added the missing regression test, modernized the code style, and wrote a data-driven breakdown-risk analysis that follows the fleet history rather than the misleading mileage assumption.

• Leakage-Free Bug Diagnosis
• Verified AI Agent Auditing
• Data-Driven Risk Analysis