docs: production safety audit design — 38 fixes across 5 layers
4-domain code audit found 13 CRITICAL, 14 HIGH, 10 MEDIUM issues.
Organized as layer-by-layer remediation:
- Layer 0: Data integrity (positions, prices, market data)
- Layer 1: Risk enforcement (make checks actually block)
- Layer 2: ML pipeline (real weights, bounded predictions)
- Layer 3: Broker safety (connection handling, volumes)
- Layer 4: Auth & ops (credentials, rate limiting, monitoring)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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