RichardandClaude Opus 4.8
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Two deeper analyses, both pure from existing data (no new API cost): - ConvictionEdgePct: return% of the biggest-bet third minus the smallest-bet third of closed markets. Positive => sizing carries information (copy size-weighted); negative => overbets losers (red flag). CalculateMarketWinRates now emits per-market (invested, returnPct) pairs consumed by StrategyMetricsCalculator.ComputeConvictionEdge. - CategoryConcentration: Herfindahl index of category volume shares (specialist vs generalist), from the category-performance dict. Stored on TraderAnalytics, exposed on TraderDetailDto. Migration AddStrategyFingerprintMetrics. +7 unit tests (70 total, 1 skip). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>