fix(admin): eliminate GoTrue empty-body 500s under bulk load (retry-all + undici keep-alive + sequential bulk), CSV formula-injection guard

package-lock.json

@@ -12,7 +12,8 @@
         "@supabase/supabase-js": "2.45.4",
         "next": "14.2.15",
         "react": "18.3.1",
-        "react-dom": "18.3.1"
+        "react-dom": "18.3.1",
+        "undici": "6.21.1"
       },
       "devDependencies": {
         "@types/node": "20.16.10",
@@ -608,6 +609,15 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici": {
+      "version": "6.21.1",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.1.tgz",
+      "integrity": "sha512-q/1rj5D0/zayJB2FraXdaWxbhWiNKDvu8naDT2dl1yTlvJp4BLtOcp2a5BvgGNQpYYJzau7tf1WgKv3b+7mqpQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.17"
+      }
+    },
     "node_modules/undici-types": {
       "version": "6.19.8",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",