Unified Logging and Traceability System for Usability Studies

RUXAILAB currently saves the final state of usability studies but lacks insight into the evaluation process itself. This project introduces a unified, scalable logging and traceability system built into the shared frontend layer, backed by entirely secure Firestore Cloud Functions. It captures methodology-specific events (like evaluator answer revisions and participant task anomalies) to provide researchers with an interactive Log Explorer, quick filters, and anonymized exports. This system enables deep session traceability for IRB submissions and post-study behavioral analysis without increasing database read costs or affecting existing architectures.