Add TSCM support to distributed agent with local mode parity

- Agent TSCM uses same ThreatDetector and CorrelationEngine as local mode
- Added baseline_id parameter support using get_tscm_baseline()
- Fixed RF scan stop_check to allow agent-specific stop events
- Fixed 'undefined MHz' display for WiFi devices (added essid fallback and null check)
- Fixed signal strength type conversion (string to int) for correlation engine
- Agent threat detection matches local mode behavior:
  - No baseline: detects anomaly/hidden_camera threats only
  - With baseline: also detects new_device threats

routes/controller.py

@@ -153,10 +153,16 @@ def get_agent_detail(agent_id: int):
             client = create_client_from_agent(agent)
             metadata = client.refresh_metadata()
             if metadata['healthy']:
+                caps = metadata['capabilities'] or {}
+                # Store full interfaces structure (wifi, bt, sdr)
+                agent_interfaces = caps.get('interfaces', {})
+                # Fallback: also include top-level devices for backwards compatibility
+                if not agent_interfaces.get('sdr_devices') and caps.get('devices'):
+                    agent_interfaces['sdr_devices'] = caps.get('devices', [])
                 update_agent(
                     agent_id,
-                    capabilities=metadata['capabilities'].get('modes') if metadata['capabilities'] else None,
-                    interfaces={'devices': metadata['capabilities'].get('devices', [])} if metadata['capabilities'] else None,
+                    capabilities=caps.get('modes'),
+                    interfaces=agent_interfaces,
                     update_last_seen=True
                 )
                 agent = get_agent(agent_id)
@@ -215,10 +221,15 @@ def refresh_agent_metadata(agent_id: int):
 
         if metadata['healthy']:
             caps = metadata['capabilities'] or {}
+            # Store full interfaces structure (wifi, bt, sdr)
+            agent_interfaces = caps.get('interfaces', {})
+            # Fallback: also include top-level devices for backwards compatibility
+            if not agent_interfaces.get('sdr_devices') and caps.get('devices'):
+                agent_interfaces['sdr_devices'] = caps.get('devices', [])
             update_agent(
                 agent_id,
                 capabilities=caps.get('modes'),
-                interfaces={'devices': caps.get('devices', [])},
+                interfaces=agent_interfaces,
                 update_last_seen=True
             )
             agent = get_agent(agent_id)

routes/tscm.py

@@ -944,7 +944,7 @@ def _scan_bluetooth_devices(interface: str, duration: int = 10) -> list[dict]:
     return devices
 
 
-def _scan_rf_signals(sdr_device: int | None, duration: int = 30) -> list[dict]:
+def _scan_rf_signals(sdr_device: int | None, duration: int = 30, stop_check: callable | None = None) -> list[dict]:
     """
     Scan for RF signals using SDR (rtl_power).
 
@@ -956,7 +956,16 @@ def _scan_rf_signals(sdr_device: int | None, duration: int = 30) -> list[dict]:
     - 915 MHz: US ISM band
     - 1.2 GHz: Video transmitters
     - 2.4 GHz: WiFi, Bluetooth, video transmitters
+
+    Args:
+        sdr_device: SDR device index
+        duration: Scan duration per band
+        stop_check: Optional callable that returns True if scan should stop.
+                   Defaults to checking module-level _sweep_running.
     """
+    # Default stop check uses module-level _sweep_running
+    if stop_check is None:
+        stop_check = lambda: not _sweep_running
     import os
     import shutil
     import subprocess
@@ -1021,7 +1030,7 @@ def _scan_rf_signals(sdr_device: int | None, duration: int = 30) -> list[dict]:
 
         # Scan each band and look for strong signals
         for start_freq, end_freq, bin_size, band_name in scan_bands:
-            if not _sweep_running:
+            if stop_check():
                 break
 
             logger.info(f"Scanning {band_name} ({start_freq/1e6:.1f}-{end_freq/1e6:.1f} MHz)")