feat(cli): add --reset-device-name and WDT feed during uploads

Co-authored-by: Cursor <cursoragent@cursor.com>

cli.py

@@ -16,7 +16,7 @@ from typing import Dict, Any, List, Optional
 
 import tempfile
 import os
-from device import copy_file, DeviceConnection
+from device import copy_file, DeviceConnection, firmware_default_device_name
 
 
 def resolve_flash_binary(path: str) -> Optional[str]:
@@ -309,6 +309,9 @@ Examples:
 
   # Set name, num_leds, default pattern, and upload
   %(prog)s --name "MyStrip" -l 60 --default rainbow
+
+  # Reset logical device name to firmware default (STA MAC based)
+  %(prog)s --reset-device-name
         """
     )
 
@@ -323,6 +326,12 @@ Examples:
         help="Device name"
     )
 
+    parser.add_argument(
+        "--reset-device-name",
+        action="store_true",
+        help="Set name to firmware default (led-<STA MAC hex>, same as fresh settings.json on led-driver)",
+    )
+
     parser.add_argument(
         "--id",
         dest="device_id",
@@ -662,11 +671,35 @@ Examples:
                 sys.exit(1)
             return  # follow blocks; when interrupted we're done
 
+    default_name_from_device: Optional[str] = None
+    if args.reset_device_name:
+        if args.name is not None:
+            print(
+                "Error: use either --name or --reset-device-name, not both.",
+                file=sys.stderr,
+            )
+            sys.exit(1)
+        try:
+            print(
+                f"Reading firmware default device name (STA MAC) on {port}...",
+                file=sys.stderr,
+            )
+            default_name_from_device = firmware_default_device_name(port)
+            print(
+                f"Default name will be {default_name_from_device!r}.",
+                file=sys.stderr,
+            )
+        except Exception as e:
+            print(f"Error: {e}", file=sys.stderr)
+            sys.exit(1)
+
     # Collect all edit parameters
     edits: Dict[str, Any] = {}
 
     if args.name is not None:
         edits["name"] = args.name
+    elif default_name_from_device is not None:
+        edits["name"] = default_name_from_device
 
     if args.pin is not None:
         edits["led_pin"] = args.pin