Added comprehensive documentation for Dec 7, 2025 timeout change:
- Extended from 10 → 30 minutes based on blocked signal analysis
- Data: 3/10 signals hit TP1, most moves after 15-30 min
- Example: Quality 70 + ADX 29.7 hit TP1 at 0.41% after 30+ min
- Trade-off: -0.4% drawdown limit protects against extended losses
- Deployment: c9c987a commit, verified operational
Updated Architecture Overview > Smart Validation Queue section with
full rationale, configuration details, and production status.