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

scripts/run_watchdog.py

@@ -19,7 +19,7 @@ logging.basicConfig(
     level=logging.WARNING,
     format="%(asctime)s %(levelname)s %(name)s: %(message)s",
 )
-logger = logging.getLogger("bb.watchdog")
+logger = logging.getLogger("sensor.watchdog")
 
 CHECK_INTERVAL = 15.0
 THERMAL_WARN = 60