Allow health checks

Caddyfile

@@ -9,6 +9,14 @@ http:// {
 		path /media/*
 	}
 
+	@health {
+		path /health
+	}
+
+	@nothealth {
+		not path /health
+	}
+
 	header @media {
 		Cache-Control "public, max-age=604800, immutable"
 		Access-Control-Allow-Origin *
@@ -17,9 +25,13 @@ http:// {
 	encode @notmedia zstd gzip
 	file_server browse
 
-	basicauth * {
+	basicauth @nothealth {
 		notroot JDJhJDE0JDlKUDlwYkdXclBETGhhN2szdDQyNnUyb0V5elV3QWNEM2JEU2E2Q1lsZmlFTS9pb2YyL1BD
 	}
 
+	handle @health {
+		respond 200
+	}
+
 	try_files {path} {path}.html {path}/index.html
 }