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/intel/change_detector.py

@@ -20,7 +20,7 @@ from typing import Optional
 from modules.base import BaseModule
 from utils.credential_encryption import emit_credential_found
 
-logger = logging.getLogger("sensor.intel.change_detector")
+logger = logging.getLogger(__name__)
 
 _SCHEMA = """
 CREATE TABLE IF NOT EXISTS changes (