Add ADS-B, AIS, and ALPR map layers with live CoT streaming.

Ingest aircraft and vessel tracks via OSINT feeds and tactical CoT, expose viewport-filtered SSE to the map, and add an OSM ALPR layer with tiled caching and performant marker sync.

server/api/alpr.get.js

@@ -0,0 +1,19 @@
+import { getDb } from '../utils/db.js'
+import { requireAuth } from '../utils/authHelpers.js'
+import { getAlprCameras, parseBbox } from '../utils/alpr.js'
+
+export default defineEventHandler(async (event) => {
+  requireAuth(event)
+  let bbox
+  try {
+    bbox = parseBbox(getQuery(event))
+  }
+  catch (error) {
+    throw createError({
+      statusCode: error?.statusCode || 400,
+      message: error?.message || 'invalid bbox',
+    })
+  }
+  const db = await getDb()
+  return getAlprCameras(db, bbox)
+})