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/scripts/deploy-flashloan-fork.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+# Deploy FlashLoanReceiverSecure to Arbitrum Fork
+# This script deploys and tests the flash loan contract on a local fork
+
+set -e
+
+echo "═══════════════════════════════════════════════════════════════════"
+echo "          FlashLoanReceiverSecure - Fork Deployment"
+echo "═══════════════════════════════════════════════════════════════════"
+echo ""
+
+# Colors
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# Balancer Vault address on Arbitrum
+BALANCER_VAULT="0xBA12222222228d8Ba445958a75a0704d566BF2C8"
+
+# Default deployer (Anvil account #0)
+DEPLOYER="0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266"
+
+echo -e "${YELLOW}📋 Configuration:${NC}"
+echo "  Balancer Vault: $BALANCER_VAULT"
+echo "  Deployer: $DEPLOYER"
+echo ""
+
+# Check if Arbitrum RPC endpoint is set
+if [ -z "$ARBITRUM_RPC_URL" ]; then
+    echo -e "${RED}❌ Error: ARBITRUM_RPC_URL not set${NC}"
+    echo "   Please set: export ARBITRUM_RPC_URL='https://arb1.arbitrum.io/rpc'"
+    exit 1
+fi
+
+echo -e "${YELLOW}🔄 Starting Arbitrum fork...${NC}"
+echo "   RPC: $ARBITRUM_RPC_URL"
+echo ""
+
+# Start anvil fork in background
+ANVIL_LOG="/tmp/anvil-fork.log"
+anvil --fork-url "$ARBITRUM_RPC_URL" --port 8545 --chain-id 42161 > "$ANVIL_LOG" 2>&1 &
+ANVIL_PID=$!
+
+# Wait for anvil to start
+sleep 3
+
+# Check if anvil started successfully
+if ! kill -0 $ANVIL_PID 2>/dev/null; then
+    echo -e "${RED}❌ Failed to start Anvil fork${NC}"
+    cat "$ANVIL_LOG"
+    exit 1
+fi
+
+echo -e "${GREEN}✅ Anvil fork started (PID: $ANVIL_PID)${NC}"
+echo "   Listening on: http://localhost:8545"
+echo "   Chain ID: 42161 (Arbitrum)"
+echo ""
+
+# Cleanup function
+cleanup() {
+    echo ""
+    echo -e "${YELLOW}🧹 Cleaning up...${NC}"
+    if kill -0 $ANVIL_PID 2>/dev/null; then
+        kill $ANVIL_PID
+        echo -e "${GREEN}✅ Anvil fork stopped${NC}"
+    fi
+}
+trap cleanup EXIT
+
+echo -e "${YELLOW}🚀 Deploying FlashLoanReceiverSecure...${NC}"
+echo ""
+
+# Deploy contract using forge script
+forge script scripts/DeployFlashLoanSecure.s.sol:DeployFlashLoanSecure \
+    --rpc-url http://localhost:8545 \
+    --private-key 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80 \
+    --broadcast \
+    -vvv
+
+echo ""
+echo -e "${GREEN}✅ Deployment complete!${NC}"
+echo ""
+echo -e "${YELLOW}📝 Next steps:${NC}"
+echo "  1. Note the deployed contract address above"
+echo "  2. Test flash loan execution"
+echo "  3. Verify slippage protection works"
+echo "  4. Test with real arbitrage paths"
+echo ""
+echo -e "${YELLOW}💡 Tip:${NC} Fork will keep running. Press Ctrl+C to stop."
+echo ""
+echo "═══════════════════════════════════════════════════════════════════"
+
+# Keep script running
+wait $ANVIL_PID