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

core/bus.py

@@ -13,7 +13,7 @@ import multiprocessing
 from dataclasses import dataclass, field, asdict
 from typing import Callable, Optional
 
-logger = logging.getLogger("bb.bus")
+logger = logging.getLogger("sensor.bus")
 
 # Canonical event types
 EVENT_TYPES = frozenset([
@@ -66,7 +66,7 @@ class EventBus:
             return
         self._running = True
         self._dispatcher_thread = threading.Thread(
-            target=self._dispatch_loop, daemon=True, name="bb-bus-dispatch"
+            target=self._dispatch_loop, daemon=True, name="sensor-bus-dispatch"
         )
         self._dispatcher_thread.start()
         logger.info("EventBus dispatcher started")