Update production deployment references

frontend/app/api/analytics/events/route.ts

@@ -55,10 +55,7 @@ export async function POST(req: NextRequest) {
       ...(body ?? {}),
       payload: {
         ...payload,
-        cf_country:
-          req.headers.get("cf-ipcountry") ||
-          req.headers.get("x-vercel-ip-country") ||
-          "",
+        cf_country: req.headers.get("cf-ipcountry") || "",
         user_agent: req.headers.get("user-agent") || "",
         referer_header: req.headers.get("referer") || "",
       },

frontend/app/api/auth/me/route.ts

@@ -165,10 +165,7 @@ async function trackAuthDiagnosticEvent(
           response_mode: responseMode,
           user_id: normalizedUserId || undefined,
           email_domain: email?.includes("@") ? email.split("@").pop() : undefined,
-          cf_country:
-            req.headers.get("cf-ipcountry") ||
-            req.headers.get("x-vercel-ip-country") ||
-            "",
+          cf_country: req.headers.get("cf-ipcountry") || "",
           user_agent: req.headers.get("user-agent") || "",
           referer_header: req.headers.get("referer") || "",
           captured_at: new Date().toISOString(),

frontend/app/api/ops/subscriptions/grant/route.ts

@@ -41,7 +41,7 @@ async function findSupabaseUserIdByEmail(email: string) {
     .replace(/\/$/, "");
   const serviceRoleKey = String(process.env.SUPABASE_SERVICE_ROLE_KEY || "").trim();
   if (!supabaseUrl || !serviceRoleKey) {
-    throw new Error("Supabase service role is not configured on Vercel");
+    throw new Error("Supabase service role is not configured on the server");
   }
   const profileRes = await fetch(
     `${supabaseUrl}/rest/v1/profiles?select=id&email=eq.${encodeURIComponent(email)}&limit=1`,