Flatten budget-app contents into repo root

frontend/Caddyfile

@@ -0,0 +1,32 @@
+{
+	admin off
+}
+
+{$SITE_ADDRESS::80} {
+	encode zstd gzip
+
+	handle /api/* {
+		reverse_proxy api:8000 {
+			transport http {
+				read_timeout 120s
+			}
+		}
+	}
+
+	handle {
+		root * /srv/web
+		try_files {path} /index.html
+		file_server
+	}
+
+	header {
+		X-Content-Type-Options nosniff
+		Referrer-Policy same-origin
+		X-Frame-Options SAMEORIGIN
+		-Server
+	}
+
+	request_body {
+		max_size 25MB
+	}
+}