feat: AtroPIM deployment config for AZ-PRM-1 (AZ-NIX-ava.2)

- port registry: atrocore = 3058
- oci-container atrocore: Gitea-registry image, 127.0.0.1:3058:80,
  web network, static ip 10.89.0.16, db alias to host pg, env-file
  from agenix, named volume for instance data, registry login via
  token secret
- agenix secrets: atrocore-env (ATRO_DB_*) + atrocore-registry-token,
  age-encrypted to AZ-PRM-1 + user, non-interactive creation
- host postgres 17: idempotent atrocore-db-init oneshot (psql peer,
  secret only at runtime), pg_hba 10.89.0.0/24 scram-sha-256,
  atrocore in 03:10 backup list
- traefik: pim.l.az-gruppe.com -> localhost:3058 (ionos, websecure)

hosts/AZ-PRM-1/secrets.nix

@@ -5,6 +5,12 @@ in {
   age = {
     secrets =
       {
+        atrocore-env = {
+          file = ../../secrets/atrocore-env.age;
+        };
+        atrocore-registry-token = {
+          file = ../../secrets/atrocore-registry-token.age;
+        };
         azion-env = {
           file = ../../secrets/azion-env.age;
         };