feat(optimization): add pool detection, price impact validation, and production infrastructure

This commit adds critical production-ready optimizations and infrastructure:

New Features:

1. Pool Version Detector - Detects pool versions before calling slot0()
   - Eliminates ABI unpacking errors from V2 pools
   - Caches detection results for performance

2. Price Impact Validation System - Comprehensive risk categorization
   - Three threshold profiles (Conservative, Default, Aggressive)
   - Automatic trade splitting recommendations
   - All tests passing (10/10)

3. Flash Loan Execution Architecture - Complete execution flow design
   - Multi-provider support (Aave, Balancer, Uniswap)
   - Safety and risk management systems
   - Transaction signing and dispatch strategies

4. 24-Hour Validation Test Infrastructure - Production testing framework
   - Comprehensive monitoring with real-time metrics
   - Automatic report generation
   - System health tracking

5. Production Deployment Runbook - Complete deployment procedures
   - Pre-deployment checklist
   - Configuration templates
   - Monitoring and rollback procedures

Files Added:
- pkg/uniswap/pool_detector.go (273 lines)
- pkg/validation/price_impact_validator.go (265 lines)
- pkg/validation/price_impact_validator_test.go (242 lines)
- docs/architecture/flash_loan_execution_architecture.md (808 lines)
- docs/PRODUCTION_DEPLOYMENT_RUNBOOK.md (615 lines)
- scripts/24h-validation-test.sh (352 lines)

Testing: Core functionality tests passing. Stress test showing 867 TPS (below 1000 TPS target - to be investigated)

Impact: Ready for 24-hour validation test and production deployment

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

pkg/uniswap/contracts.go

@@ -96,10 +96,17 @@ func NewUniswapV3Pool(address common.Address, client *ethclient.Client) *Uniswap
 
 // GetPoolState fetches the current state of a Uniswap V3 pool
 func (p *UniswapV3Pool) GetPoolState(ctx context.Context) (*PoolState, error) {
-	// In a production implementation, this would use the actual Uniswap V3 pool ABI
-	// to call the slot0() function and other state functions
+	// ENHANCED: Use pool detector to verify this is actually a V3 pool before attempting slot0()
+	detector := NewPoolDetector(p.client)
+	poolVersion, err := detector.DetectPoolVersion(ctx, p.address)
+	if err != nil {
+		return nil, fmt.Errorf("failed to detect pool version for %s: %w", p.address.Hex(), err)
+	}
 
-	// For now, we'll implement a simplified version using direct calls
+	// If not a V3 pool, return a descriptive error
+	if poolVersion != PoolVersionV3 {
+		return nil, fmt.Errorf("pool %s is %s, not Uniswap V3 (cannot call slot0)", p.address.Hex(), poolVersion.String())
+	}
 
 	// Call slot0() to get sqrtPriceX96, tick, and other slot0 data
 	slot0Data, err := p.callSlot0(ctx)