feat: add AI catalog description generation

backend/src/routes/metadata-generation-models.ts

@@ -0,0 +1,13 @@
+import type { FastifyInstance } from "fastify";
+import { isPrincipalContext, requirePermission } from "../auth/authorization.js";
+import type { MetadataGenerationModels } from "../catalog/metadata-generation-models.js";
+
+export function metadataGenerationModelRoutes(
+  app: FastifyInstance,
+  models: MetadataGenerationModels,
+): void {
+  app.get("/catalog/metadata-generation/models", async (request, reply) => {
+    if (!isPrincipalContext(requirePermission(request, reply, "database.manage"))) return reply;
+    return models.catalog();
+  });
+}