fix: handle /snapshots on health check

Author: jvsena42

src/store/shapes/settings.ts

@@ -103,7 +103,7 @@ export const initialSettingsState: TSettings = {
 	selectedCurrency: getDefaultCurrency(),
 	selectedLanguage: 'english',
 	customElectrumPeers: defaultElectrumPeer,
-	rapidGossipSyncUrl: 'https://rgs.blocktank.to/snapshots/',
+	rapidGossipSyncUrl: 'https://rgs.blocktank.to/snapshot/',
 	coinSelectAuto: true,
 	coinSelectPreference: ECoinSelectPreference.small,
 	receivePreference: defaultReceivePreference,

src/utils/lightning/index.ts

@@ -260,11 +260,15 @@ export const checkRgsHealth = async (): Promise<
 	Result<{ isHealthy: boolean; timestamp: number; ageHours: number }>
 > => {
 	try {
-		const rgsUrl = getStore().settings.rapidGossipSyncUrl;
+		const rgsBaseUrl = getStore().settings.rapidGossipSyncUrl;
+
+		// Convert /snapshot/ to /snapshots/ for directory listing
+		// LDK uses /snapshot/<timestamp> but we need /snapshots/ to list all snapshots
+		const listingUrl = rgsBaseUrl.replace('/snapshot/', '/snapshots/');
 
 		// Fetch the RGS directory listing to find latest snapshot
 		// @ts-ignore - fetch is available globally in React Native
-		const response: any = await promiseTimeout(5000, fetch(rgsUrl));
+		const response: any = await promiseTimeout(5000, fetch(listingUrl));
 
 		if (!response.ok) {
 			return err(`RGS endpoint returned status ${response.status}`);