secrets-init: SERVICE_TOKEN читаемый для сервера (как DB_PASSWORD, JWT_SECRET)

Без этого после #26 сервер не стартует: AccessDeniedException /run/mail-secrets/SERVICE_TOKEN
(на prod поправлено руками chmod 644 в томе 2026-11-07).

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

docker-compose.image.yml

@@ -23,7 +23,7 @@ services:
           [ -s /secrets/$$name ] || head -c 48 /dev/urandom | base64 | tr -dc 'A-Za-z0-9' > /secrets/$$name
         done
         # postgres reads it as uid 70, the app as uid 10001 — readable inside these containers only
-        chmod 644 /secrets/DB_PASSWORD /secrets/JWT_SECRET
+        chmod 644 /secrets/DB_PASSWORD /secrets/JWT_SECRET /secrets/SERVICE_TOKEN
     volumes:
       - secrets:/secrets