Add Airframes ACARS datalink on plane dossiers and Meshtastic planet scan.

Bulk-ingest Airframes messages on a rate-limited staggered queue with instant cache lookups and priority per-aircraft refresh when opening a dossier; add Meshtastic manual SCAN PLANET control in the SIGINT panel.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/services/api_settings.py

@@ -6,6 +6,7 @@ Keys are stored in the backend .env file and loaded via python-dotenv.
 import os
 import re
 import tempfile
+import threading
 from pathlib import Path
 
 # Path to the backend .env file
@@ -87,6 +88,15 @@ API_REGISTRY = [
         "url": "https://firms.modaps.eosdis.nasa.gov/api/area/",
         "required": False,
     },
+    {
+        "id": "airframes_api_key",
+        "env_key": "AIRFRAMES_API_KEY",
+        "name": "Airframes.io — API Key",
+        "description": "ACARS/VDL datalink for plane dossiers. ShadowBroker bulk-ingests the global Airframes firehose (up to 100 messages per API call, one call every 2s, refill every 15 minutes) and indexes by tail/ICAO. Opening a dossier with no cache queues a single-plane lookup. Get a key at app.airframes.io → Dashboard → API Key.",
+        "category": "Aviation",
+        "url": "https://app.airframes.io/user/dashboard",
+        "required": False,
+    },
     {
         "id": "celestrak",
         "env_key": None,
@@ -366,6 +376,17 @@ def save_api_keys(updates: dict[str, str]) -> dict:
             flights.opensky_client.expires_at = 0
         except Exception:
             pass
+    if "AIRFRAMES_API_KEY" in clean:
+        try:
+            from services.fetchers.airframes import sync_airframes_messages
+
+            threading.Thread(
+                target=lambda: sync_airframes_messages(force=True),
+                daemon=True,
+                name="airframes-initial-sync",
+            ).start()
+        except Exception:
+            pass
 
     try:
         from services.config import get_settings