chore: normalize file permissions across repository

- Remove executable permissions from configuration files (.editorconfig, .env.example, .gitignore)
- Remove executable permissions from documentation files (README.md, LICENSE, SECURITY.md)
- Remove executable permissions from web assets (HTML, CSS, JS files)
- Remove executable permissions from data files (JSON, SQL, YAML, requirements.txt)
- Remove executable permissions from source code files across all apps
- Add executable permissions to Python

scripts/manage-services.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+# AITBC Service Management Script - No sudo required
+
+case "${1:-help}" in
+    "start")
+        echo "Starting AITBC services..."
+        sudo systemctl start aitbc-coordinator-api.service
+        sudo systemctl start aitbc-blockchain-node.service
+        sudo systemctl start aitbc-blockchain-rpc.service
+        echo "Services started"
+        ;;
+    "stop")
+        echo "Stopping AITBC services..."
+        sudo systemctl stop aitbc-coordinator-api.service
+        sudo systemctl stop aitbc-blockchain-node.service
+        sudo systemctl stop aitbc-blockchain-rpc.service
+        echo "Services stopped"
+        ;;
+    "restart")
+        echo "Restarting AITBC services..."
+        sudo systemctl restart aitbc-coordinator-api.service
+        sudo systemctl restart aitbc-blockchain-node.service
+        sudo systemctl restart aitbc-blockchain-rpc.service
+        echo "Services restarted"
+        ;;
+    "status")
+        echo "=== AITBC Services Status ==="
+        sudo systemctl status aitbc-coordinator-api.service --no-pager
+        sudo systemctl status aitbc-blockchain-node.service --no-pager
+        sudo systemctl status aitbc-blockchain-rpc.service --no-pager
+        ;;
+    "logs")
+        echo "=== AITBC Service Logs ==="
+        sudo journalctl -u aitbc-coordinator-api.service -f
+        ;;
+    "help"|*)
+        echo "AITBC Service Management"
+        echo ""
+        echo "Usage: $0 {start|stop|restart|status|logs|help}"
+        echo ""
+        echo "Commands:"
+        echo "  start   - Start all AITBC services"
+        echo "  stop    - Stop all AITBC services"
+        echo "  restart - Restart all AITBC services"
+        echo "  status  - Show service status"
+        echo "  logs    - Follow service logs"
+        echo "  help    - Show this help message"
+        ;;
+esac