WinRacing V52.0 Self-Learning Feedback Engine - Replaced V52 placeholders with operational read-only engine. - Consumes V51.8 decision and audit output. - Adds TP/FP/FN/TN feedback classification. - Adds calibration error, advisory adjustment and learning confidence. - Adds in-memory pattern aggregation and JSON snapshot output. - Adds V52 dashboard and API. - Does not mutate V44-V51 decisions, weights or database schema.