release: 1.5.0

Close Unreleased for send-log retention in Settings; pin compose and docs to 1.5.0.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/product.md

@@ -58,11 +58,11 @@ Explicitly excluded to prevent scope creep:
 The **domain-admin** role ships in the current line (global administrator plus
 domain administrators with assigned domains). The optional **inbound relay**
 (backup-MX / forwarder on port 25) ships in `[1.4.0]`, off by default behind
-`INBOUND_RELAY_ENABLE`; it is relay/forward, not IMAP/webmail. Items
-marked *candidate* in the
+`INBOUND_RELAY_ENABLE`; it is relay/forward, not IMAP/webmail. **Send-log
+retention in Settings** ships in `[1.5.0]`. Items marked *candidate* in the
 [roadmap](roadmap.md) require explicit approval before coding (including
-**send-log retention in Settings**, **30-day send statistics**, and **auto
-level-2 rate limits** — see linked plans there).
+**30-day send statistics** and **auto level-2 rate limits** — see linked
+plans there).
 
 ---