Add homelab installer and services (allprox, authelia, lldap)

installer/src/compose.ts

@@ -0,0 +1,17 @@
+import { stringify } from "yaml";
+import type { ServiceMetadata } from "./types.ts";
+
+/** Build the docker-compose.yml content for a service from its metadata. */
+export function generateComposeFile(meta: ServiceMetadata): string {
+  const doc: Record<string, unknown> = {};
+
+  if (meta.networks && Object.keys(meta.networks).length > 0) {
+    doc.networks = meta.networks;
+  }
+  if (meta.volumes && Object.keys(meta.volumes).length > 0) {
+    doc.volumes = meta.volumes;
+  }
+  doc.services = { [meta.id]: meta.compose };
+
+  return stringify(doc, { lineWidth: 0 });
+}