Add initial peers on node startup if we don't have any in the repository.

This will be needed for future bootstraps, which don't contain any peers. It is also useful for those who have used the DELETE /peers/known API.

src/main/java/org/qortal/controller/Controller.java

@@ -457,6 +457,9 @@ public class Controller extends Thread {
 		// Import current trade bot states and minting accounts if they exist
 		Controller.importRepositoryData();
 
+		// Add the initial peers to the repository if we don't have any
+		Controller.installInitialPeers();
+
 		LOGGER.info("Starting controller");
 		Controller.getInstance().start();
 
@@ -679,6 +682,17 @@ public class Controller extends Thread {
 		}
 	}
 
+	private static void installInitialPeers() {
+		try (final Repository repository = RepositoryManager.getRepository()) {
+			if (repository.getNetworkRepository().getAllPeers().isEmpty()) {
+				Network.installInitialPeers(repository);
+			}
+
+		} catch (DataException e) {
+			// Fail silently as this is an optional step
+		}
+	}
+
 	private long getRandomRepositoryMaintenanceInterval() {
 		final long minInterval = Settings.getInstance().getRepositoryMaintenanceMinInterval();
 		final long maxInterval = Settings.getInstance().getRepositoryMaintenanceMaxInterval();