core: credit referral invites on first Lite checkout

Applies saved invites during Lite checkout so users who skip the referral page still credit the inviter. Avoids crediting already-active Lite workspaces so rewards stay tied to the first upgrade.

packages/console/app/src/lib/referral-invite.ts

@@ -1,4 +1,6 @@
+import { Actor } from "@opencode-ai/console-core/actor.js"
 import { Referral } from "@opencode-ai/console-core/referral.js"
+import { getRequestEvent } from "solid-js/web"
 
 const REFERRAL_COOKIE = "oc_referral"
 const REFERRAL_MAX_AGE = 60 * 60 * 24 * 30
@@ -26,3 +28,17 @@ export function referralCodeFromCookieHeader(header: string | null) {
       ?.slice(`${REFERRAL_COOKIE}=`.length),
   )
 }
+
+export async function createReferralFromCookie() {
+  const event = getRequestEvent()
+  const referralCode = referralCodeFromCookieHeader(event?.request.headers.get("cookie") ?? null)
+  if (!referralCode) return
+
+  await Referral.createFromAccount({
+    accountID: Actor.account(),
+    referralCode,
+  }).catch((error) => {
+    console.error("Referral create failed", error)
+  })
+  event?.response.headers.append("set-cookie", clearReferralCookie())
+}