fix(staging): allow model catalog bootstrap

frontend/src/app/api/health/route.ts

@@ -27,7 +27,7 @@ async function jyotishApiCheck(): Promise<Check> {
       signal: controller.signal,
     });
     return {
-      status: response.ok ? "ok" : "degraded",
+      status: response.ok ? "ok" : "blocked",
       message: response.ok ? undefined : `http:${response.status}`,
       latencyMs: Date.now() - started,
     };
@@ -45,9 +45,11 @@ async function jyotishApiCheck(): Promise<Check> {
 async function modelCatalogCheck(): Promise<Check> {
   const catalog = await loadLanguageModelCatalog();
   const defaults = catalog.models.filter((model) => model.isDefault && model.id === catalog.defaultModelId);
-  return defaults.length === 1
-    ? { status: "ok" }
-    : { status: "blocked", message: catalog.issues[0] ?? "default_model_unavailable" };
+  if (defaults.length === 1) return { status: "ok" };
+  const message = catalog.issues[0] ?? "default_model_unavailable";
+  return message === "database_model_catalog_unavailable"
+    ? { status: "blocked", message }
+    : { status: "degraded", message };
 }
 
 function aggregate(checks: Record<string, Check>) {
@@ -94,6 +96,6 @@ export async function GET() {
       truthSource: truthSourceIdentity,
       checks,
     },
-    { status: status === "ok" ? 200 : 503 },
+    { status: status === "blocked" ? 503 : 200 },
   );
 }