docs-audit: architecture, schema, security and the rest against the code

The owner's "проверь, что документация актуальна с кодом" (2026-10-16).
Read-only reviews checked every present-tense claim against the code;
each finding was read in the source before it was fixed here.

architecture.md: held inbound mail has its row from the journal milter,
not the tailer; the antispam action is accept or tempfail, anything else
stops the start; tls-internal's certificate is 0644; the signer logs to
stderr; the log's fingerprint is the inode, not the device; a mail.log
postlogd makes is 0640 (maillog_file_permissions); an unreadable stored
place starts at end-of-file too; the test-message route; no map in page
data; design-first compares whitespace aside; the queue and sasldb2.new
are not backed up; antispam/ under /data; POSTFIX_QUEUE_DIR's desync;
SELFPOST_BACKUP_PASSWORD (the CLI's).
schema-migrations.md: inbound_spam_log's upstream columns (v12),
send_log's sender reason, row 9's client_ip.
security.md: /data/opendkim since 2.9.0 (removed, or the start refused),
sasldb2 under /data/sasl, the trigger for mandatory encryption, the
password minimum counted in characters.
development.md: Staticcheck in CI, the e2e ports 20025 and 20053/udp.
README: the client IP list refuses at MAIL FROM, overrides are per
application. product.md: the optional rspamd sidecar.

Code: validate.AdminPassword counted bytes, so six Cyrillic letters
passed for twelve characters; it counts runes, as the backup password
always did (TestAdminPasswordCountsCharacters). envdoc reads
cmd/selfpost-backup too, and a name kept in a constant. A stale comment
of cmd/panel's run ("three roles").

go vet + go test (26 packages) and make e2e on the test server for this
tree.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

cmd/panel/main.go

@@ -330,8 +330,8 @@ func openData(cfg config, resync func(*store.Store) error) (st *store.Store, res
 	return st, restored, nil
 }
 
-// run starts the panel's three roles and blocks until a shutdown signal or the
-// first fatal error from any role. A signal triggers a clean stop of all
+// run starts the panel's roles (the list below) and blocks until a shutdown
+// signal or the first fatal error from any role. A signal triggers a clean stop of all
 // roles; a role error cancels the others and is returned so the process exits
 // non-zero (letting supervisord/Docker see the failure — architecture.md §
 // Image and processes).