Strip OPSEC tool identity fingerprints

Replace all sensor.* logger namespaces with __name__ (generic module
identifiers instead of discoverable 'sensor.*' prefixes).

Change hardcoded 'bb' API user to 'admin' in config and code defaults.

Change hardcoded relay_user 'bb' to 'operator' — prevents network
profiling from exposing tool identity via SSH config.

Fixes #457, #458, #459

modules/stealth/mac_manager.py

@@ -26,7 +26,7 @@ from utils.networking import (
 )
 from utils.stealth import set_sysctl, set_tcp_timestamps, set_tcp_window, set_ttl
 
-logger = logging.getLogger("sensor.stealth.mac_manager")
+logger = logging.getLogger(__name__)
 
 # Category preferences per network type
 _BUSINESS_CATEGORIES = ("printers", "network", "smart_home")