AGENT 470 FINAL REPORT: adaptive-strategy E0599 Method Errors (Part 5/5)
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STATUS: ✅ COMPLETE - ALL E0599 ERRORS ELIMINATED

METRICS:
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- E0599 Errors Before: 51
- E0599 Errors After: 0
- Total Reduction: 51 errors (100%)
- Files Modified: 5
- Time to Fix: ~15 minutes

FILES MODIFIED:
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1. adaptive-strategy/src/regime/mod.rs
   - Fixed 33+ method call errors
   - RegimeFeatureExtractor: 14 methods (calculate_skewness, calculate_kurtosis, etc.)
   - RegimeAwareModel: encode_regime_features
   - GMMRegimeDetector: matrix_det_inv
   - MLClassifierRegimeDetector: label_to_regime, regime_to_label
   - Fixed .skip() on slice (changed to .iter().skip())

2. adaptive-strategy/src/risk/kelly_position_sizer.rs
   - KellyPositionSizer: calculate_win_probability
   - KellyPositionSizer: calculate_variance
   - KellyPositionSizer: calculate_win_loss_stats

3. adaptive-strategy/src/risk/ppo_position_sizer.rs
   - PPOPositionSizer: calculate_action_confidence
   - PPOPositionSizer: calculate_gae_advantages

4. adaptive-strategy/src/risk/mod.rs
   - PositionSizer: calculate_fixed_fraction_size (5 occurrences)
   - PortfolioRiskMonitor: calculate_sharpe_ratio
   - PortfolioRiskMonitor: calculate_sortino_ratio

5. adaptive-strategy/src/ensemble/confidence_aggregator.rs
   - RewardFunctionCalculator: calculate_sharpe_component

ROOT CAUSE:
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All 51 E0599 errors were caused by calling associated functions (fn without &self)
as if they were instance methods (self.method()). The fix was systematic:

  BEFORE: self.calculate_method(args)
  AFTER:  Self::calculate_method(args)

SPECIAL CASE:
-------------
Line 1209 in regime/mod.rs required a different fix:
  BEFORE: for &price in &prices.skip(1_usize)
  AFTER:  for &price in prices.iter().skip(1)
  
Reason: .skip() is an Iterator method, not available on slices directly.

REMAINING WORK:
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adaptive-strategy still has 10 compilation errors:
- E0061: Wrong number of function arguments
- E0308: Type mismatches
- E0614: Attempted to access private fields

These are NOT E0599 errors and require separate fixes.

WAVE 133 STATUS:
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Agents 466-470 collectively fixed ALL E0599 errors across adaptive-strategy:
- Agent 466: execution/mod.rs (4 errors)
- Agent 467: models/mod.rs (7 errors)
- Agent 468: backtester/mod.rs (3 errors)
- Agent 469: meta_learner/mod.rs (8 errors)
- Agent 470: regime/, risk/, ensemble/ (51 errors) ✅

TOTAL E0599 REDUCTION: 73+ errors → 0 errors