feat(testing): add Anvil fork local testing infrastructure
Complete local testing setup with Anvil fork of Arbitrum mainnet:
Infrastructure:
- Docker Compose orchestration (Anvil, MEV Bot, Prometheus, Grafana)
- Anvil fork configuration with 1-second blocks
- Multi-stage Dockerfile for optimized builds
- Health checks and auto-restart policies
Configuration:
- Comprehensive .env.example with all parameters
- Prometheus metrics collection setup
- Grafana datasource provisioning
- .gitignore to prevent committing secrets
Testing Scripts:
- setup-local-fork.sh: Initialize fork and fund test wallet
- create-test-swap.sh: Generate test swaps for bot detection
- Both scripts include validation and helpful output
Integration Components:
- pkg/sequencer/reader.go: WebSocket reader for pending transactions
- Worker pool pattern (10 workers)
- <50ms processing target
- Front-running capability
- Auto-reconnection with exponential backoff
- pkg/pools/discovery.go: Pool discovery service
- UniswapV2-style pools (SushiSwap, Camelot)
- UniswapV3 pools (multiple fee tiers)
- Factory contract queries
- Liquidity filtering
Documentation:
- TESTING.md: Complete testing guide
- Quick start instructions
- Testing scenarios
- Monitoring and debugging
- Performance benchmarks
- Troubleshooting guide
This enables safe local testing without deploying to public testnet,
using real Arbitrum mainnet state forked locally with Anvil.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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