social.coves.community.removal

A community's record that a post has been removed from it. Written in the same com.atproto.repo.applyWrites commit that deletes the social.coves.community.acceptance, so the firehose never carries a half-completed moderation action. Removal is URI-scoped and terminal: it applies to the post URI across later author edits, not only to the version it pins. A post rejected at submission time was never accepted and writes no record. Removed is exited only by an explicit moderator restore: an atomic commit deleting the removal record and writing a fresh acceptance. The record key is deterministic: the unpadded lowercase base32 encoding of the SHA-256 digest of the canonical subject AT-URI (fixed 52 characters, always rkey-safe), so each post has exactly one removal rkey per community and re-removal updates the same record.