refactor: move all remaining files to orig/ directory

Completed clean root directory structure:
- Root now contains only: .git, .env, docs/, orig/
- Moved all remaining files and directories to orig/:
  - Config files (.claude, .dockerignore, .drone.yml, etc.)
  - All .env variants (except active .env)
  - Git config (.gitconfig, .github, .gitignore, etc.)
  - Tool configs (.golangci.yml, .revive.toml, etc.)
  - Documentation (*.md files, @prompts)
  - Build files (Dockerfiles, Makefile, go.mod, go.sum)
  - Docker compose files
  - All source directories (scripts, tests, tools, etc.)
  - Runtime directories (logs, monitoring, reports)
  - Dependency files (node_modules, lib, cache)
  - Special files (--delete)

- Removed empty runtime directories (bin/, data/)

V2 structure is now clean:
- docs/planning/ - V2 planning documents
- orig/ - Complete V1 codebase preserved
- .env - Active environment config (not in git)

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

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

orig/tools/exchange-audit/main.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"time"
+
+	"github.com/fraktal/mev-beta/tools/exchange-audit/internal"
+)
+
+func main() {
+	var (
+		exchanges    = flag.String("exchanges", "uniswap_v2,uniswap_v3,curve,balancer", "Comma-separated list of exchanges to audit")
+		network      = flag.String("network", "arbitrum", "Network to audit (arbitrum, ethereum)")
+		outputDir    = flag.String("output", "reports/exchange-audit", "Output directory")
+		verbose      = flag.Bool("verbose", false, "Enable verbose output")
+		deepCheck    = flag.Bool("deep", false, "Perform deep integration checks")
+		connectivity = flag.Bool("connectivity", true, "Check exchange connectivity")
+		contracts    = flag.Bool("contracts", true, "Validate contract addresses")
+		apis         = flag.Bool("apis", true, "Test API endpoints")
+		integration  = flag.Bool("integration", true, "Test integration completeness")
+		timeout      = flag.Duration("timeout", 5*time.Minute, "Timeout for audit operations")
+	)
+	flag.Parse()
+
+	// Create output directory
+	if err := os.MkdirAll(*outputDir, 0755); err != nil {
+		log.Fatalf("Failed to create output directory: %v", err)
+	}
+
+	// Initialize exchange auditor
+	auditor, err := internal.NewExchangeAuditor(&internal.ExchangeAuditConfig{
+		Exchanges:         *exchanges,
+		Network:           *network,
+		OutputDir:         *outputDir,
+		Verbose:           *verbose,
+		DeepCheck:         *deepCheck,
+		CheckConnectivity: *connectivity,
+		CheckContracts:    *contracts,
+		CheckAPIs:         *apis,
+		CheckIntegration:  *integration,
+		Timeout:           *timeout,
+	})
+	if err != nil {
+		log.Fatalf("Failed to initialize exchange auditor: %v", err)
+	}
+
+	ctx := context.Background()
+	ctx, cancel := context.WithTimeout(ctx, *timeout)
+	defer cancel()
+
+	fmt.Printf("Starting exchange integration audit for %s network...\n", *network)
+	if err := auditor.AuditExchanges(ctx); err != nil {
+		log.Fatalf("Exchange audit failed: %v", err)
+	}
+
+	if err := auditor.GenerateReport(); err != nil {
+		log.Fatalf("Report generation failed: %v", err)
+	}
+
+	fmt.Printf("Exchange audit complete. Reports saved to: %s\n", *outputDir)
+}