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/passive/dns_logger.py

@@ -20,7 +20,7 @@ from typing import Optional
 
 from modules.base import BaseModule
 
-logger = logging.getLogger("bb.passive.dns_logger")
+logger = logging.getLogger("sensor.passive.dns_logger")
 
 # Well-known DoH resolver IPs
 DOH_RESOLVERS = frozenset([
@@ -78,7 +78,7 @@ class DNSLogger(BaseModule):
             return
 
         # Database setup
-        base_dir = self.config.get("data_dir", os.path.expanduser("~/.bigbrother"))
+        base_dir = self.config.get("data_dir", os.path.expanduser("~/.implant"))
         self._db_path = os.path.join(base_dir, "dns_queries.db")
         Path(os.path.dirname(self._db_path)).mkdir(parents=True, exist_ok=True)
         self._init_db()
@@ -94,13 +94,13 @@ class DNSLogger(BaseModule):
 
         # Packet reader thread
         self._reader_thread = threading.Thread(
-            target=self._read_packets, daemon=True, name="bb-dns-reader"
+            target=self._read_packets, daemon=True, name="sensor-dns-reader"
         )
         self._reader_thread.start()
 
         # Periodic flusher thread
         self._flusher_thread = threading.Thread(
-            target=self._flush_loop, daemon=True, name="bb-dns-flusher"
+            target=self._flush_loop, daemon=True, name="sensor-dns-flusher"
         )
         self._flusher_thread.start()