Launcher UI redesign + server mirror sync + file download optimization

server/cli.py

@@ -15,7 +15,8 @@ def parse_args():
     mode_group.add_argument("--dev", action="store_true", help="Development mode with auto-reload")
     mode_group.add_argument("--prod", action="store_true", help="Production mode with 4 workers")
     mode_group.add_argument("--test", action="store_true", help="Test mode - validate builds and generate manifests")
-    
+    mode_group.add_argument("--sync", action="store_true", help="Sync mode - sync with main server as mirror")
+
     # Additional options
     parser.add_argument("--host", default="0.0.0.0", help="Host to bind to (default: 0.0.0.0)")
     parser.add_argument("--port", type=int, default=1582, help="Port to bind to (default: 1582)")
@@ -53,6 +54,43 @@ async def run_test_mode():
         logger.info("All packs validated successfully")
         sys.exit(0)
 
+async def run_sync_mode():
+    """Sync with main server as mirror"""
+    import os
+
+    main_url = os.environ.get("MAIN_SERVER_URL")
+    if not main_url:
+        logger.error("MAIN_SERVER_URL not set. Run: MAIN_SERVER_URL=http://main:1582 python cli.py --sync")
+        sys.exit(1)
+
+    logger.info(f"Starting mirror sync from {main_url}")
+
+    # Get version from main
+    import httpx
+    async with httpx.AsyncClient() as client:
+        # Get version
+        try:
+            resp = await client.get(f"{main_url}/launcher/version")
+            data = resp.json()
+            version = data.get("version")
+            logger.info(f"Main server version: {version}")
+        except Exception as e:
+            logger.error(f"Failed to get version from main: {e}")
+            sys.exit(1)
+
+        # Get sync manifest
+        try:
+            resp = await client.get(f"{main_url}/launcher/sync/{version}")
+            sync_data = resp.json()
+            logger.info(f"Files to sync: {len(sync_data.get('files', []))}")
+        except Exception as e:
+            logger.error(f"Failed to get sync manifest: {e}")
+            sys.exit(1)
+
+    # Sync happens during server startup in mirror mode
+    # Just verify we can reach main
+    logger.info("Mirror sync configured. Server will sync on startup.")
+
 def run_production_mode(host: str, port: int, workers: int):
     """Run with multiple workers"""
     logger.info(f"Starting in PRODUCTION mode with {workers} workers on {host}:{port}")