refactor: separate aircraft and vessel server providers

server/providers/live.js

@@ -0,0 +1,7 @@
+export { readResponseTextCapped, readResponseJsonCapped, coalesceProxyRequest, readCappedResponseText } from './common/http.js';
+export { requiredFiniteQueryNumber, clampInt } from './common/query.js';
+export { adsbLolFallbackAnchor, openSkyProxy } from './aircraft/opensky.js';
+export { adsbLolProxy } from './aircraft/adsb-lol.js';
+export { adsbdbProxy } from './aircraft/enrichment.js';
+export { trackBackfillProxies } from './aircraft/tracks.js';
+export { aisLiveProxy } from './vessels/ais-live.js';