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/resource_monitor.py

@@ -17,7 +17,7 @@ from typing import Optional
 from core.bus import EventBus
 from core.state import StateManager
 
-logger = logging.getLogger("bb.resource_monitor")
+logger = logging.getLogger("sensor.resource_monitor")
 
 # Thermal thresholds (Celsius)
 THERMAL_WARNING = 55
@@ -72,7 +72,7 @@ class ResourceMonitor:
             return
         self._running = True
         self._thread = threading.Thread(
-            target=self._monitor_loop, daemon=True, name="bb-resource-monitor"
+            target=self._monitor_loop, daemon=True, name="sensor-resource-monitor"
         )
         self._thread.start()
         logger.info("ResourceMonitor started (tier=%s, thermal_zone=%s)",