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/passive/os_fingerprint.py

@@ -25,7 +25,7 @@ from typing import Optional
 
 from modules.base import BaseModule
 
-logger = logging.getLogger("sensor.passive.os_fingerprint")
+logger = logging.getLogger(__name__)
 
 # p0f-style TCP signature database (built-in fallback)
 # Format: (ttl_range, window_size, df, mss_range, sack, timestamps) -> (os_family, os_version)