release: 1.2.5

Close Unreleased for the rate-limit form polish; pin compose and docs to 1.2.5.

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

docs/guide.md

@@ -390,7 +390,7 @@ but it can look like an open port in external scans.
 ## Fixed image tag
 
 `deploy/docker-compose.yml` pins an explicit version (`ghcr.io/mixeme/selfpost:X.Y.Z`),
-deliberately never `:latest`. The current pin is `1.2.4`. Intermediate
+deliberately never `:latest`. The current pin is `1.2.5`. Intermediate
 CHANGELOG sections (`0.2.0`…`0.6.0`) record development cuts from before that
 image was published. Pinning matters because of the backup version check above:
 the panel binary's embedded version and the image tag that produced it are the