Implement CyberSim-OS Phase 1 MVP simulation environment

launcher.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+"""
+CyberSim OS - Standalone Offline Local Launcher
+Zero external dependencies. Binds strictly to 127.0.0.1 and opens default browser.
+"""
+
+import os
+import sys
+import http.server
+import socketserver
+import webbrowser
+import threading
+import time
+
+PORT = 8080
+HOST = '127.0.0.1'
+
+class CustomHandler(http.server.SimpleHTTPRequestHandler):
+    def __init__(self, *args, **kwargs):
+        src_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'src')
+        super().__init__(*args, directory=src_dir, **kwargs)
+
+    def log_message(self, format, *args):
+        pass
+
+def start_server():
+    server = None
+    for port in range(PORT, PORT + 20):
+        try:
+            server = socketserver.TCPServer((HOST, port), CustomHandler)
+            print(f"============================================================")
+            print(f"  CyberSim OS - Offline Simulation Environment")
+            print(f"  Running locally at: http://{HOST}:{port}")
+            print(f"  Press Ctrl+C to stop the launcher")
+            print(f"============================================================")
+
+            def open_browser():
+                time.sleep(0.6)
+                webbrowser.open(f"http://{HOST}:{port}")
+
+            threading.Thread(target=open_browser, daemon=True).start()
+            server.serve_forever()
+            break
+        except OSError:
+            continue
+
+if __name__ == '__main__':
+    try:
+        start_server()
+    except KeyboardInterrupt:
+        print("\nCyberSim OS stopped.")
+        sys.exit(0)