nutrition for platform

src/api/nutrition.ts

@@ -26,7 +26,29 @@
  *    correct; the data has to catch up.
  */
 
-const NUTRITION_BASE = 'https://mcp.nearle.ai.in/api';
+/*
+ * Through this console's OWN origin, not the service's.
+ *
+ * `/ingest` is proxied to mcp.nearle.ai.in by nginx in production and by vite in
+ * development, so this is same-origin either way and CORS does not enter into
+ * it.
+ *
+ * It used to be the absolute `https://mcp.nearle.ai.in/api`, and that works only
+ * where the service's allowlist names the calling origin. Measured 30 Sep 2026:
+ * a request carrying `Origin: https://app.nearledaily.com` comes back with
+ * `Access-Control-Allow-Origin` and one carrying
+ * `Origin: https://platform.nearledaily.com` comes back without it. So the
+ * browser dropped every response here, `forProduct` returned null, and the panel
+ * showed "No health score available for this product yet" for every product —
+ * the same product that renders fine in the merchant console.
+ *
+ * `vite.config.ts` called this exactly: "it works on every developer machine and
+ * fails the moment it is deployed, which is the worst order to find out."
+ *
+ * The proxy also attaches the ingest API key, which this endpoint does not need
+ * and does not mind.
+ */
+const NUTRITION_BASE = '/ingest/api';
 
 /** How confident the service is that it matched the right source record. */
 export const LOW_CONFIDENCE = 0.7;