Storage-rules diagnostic

This page reads YOUR paid_users doc and reports which of the three storage-rules teacher signals fire. Nothing is written; only your own doc is read.

What to do next

If any of the three signals shows YES, the storage rules will let you read every /pdfs/{ibcourse}/** folder after the last firebase deploy --only storage.

If all three show NO, your paid_users doc needs a re-attach — copy the JSON above and send it, we'll fix it in one call.