idz: Remove profile ext id

Turns out (while researching team creation) the profile ext id
is just the aime id. After creating a team a profile discovery
request is immediately issued with the "profile id" in the field
that holds the aime id during initial profile load.

src/idz/handler/saveTimeAttack.ts

@@ -13,9 +13,10 @@ export async function saveTimeAttack(
     // Override client time since we might be doing some maintenance window
     // avoidance time warping stuff
 
-    await w
-      .timeAttack()
-      .save(req.profileId, { ...req.payload, timestamp: new Date() });
+    const now = new Date();
+    const profileId = await w.profile().find(req.aimeId);
+
+    await w.timeAttack().save(profileId, { ...req.payload, timestamp: now });
   }
 
   return {