Add and update host variable files for various servers

- Created new host variable file for `iam-nd.oopen.de` with network and cron configurations.
- Created new host variable file for `test.mariadb.oopen.de` with cron environment entries.
- Updated `file-km.anw-km.netz.yml.BAK.2026-04-18-1218` with network interface configurations and DNS settings.
- Modified `gw-campus.oopen.de.yml` to change device names for network interfaces.
- Updated `nd-archiv.warenform.de.yml`, `nd-live.warenform.de.yml`, `nd.warenform.de.yml`, `web0.warenform.de.yml`, `web1.warenform.de.yml`, and `web2.warenform.de.yml` to replace `wkhtmltopdf` with `weasyprint` in the list of extra packages.
- Updated `o26.oopen.de.yml` to correct SSH key destination and change backup job script path.
- Added `iam-nd.oopen.de` to the hosts file for server management.

host_vars/meet.akweb.de.yml

@@ -100,6 +100,62 @@ resolved_fallback_nameserver:
    - 194.150.168.168
 
 
+# ---
+# vars used by roles/common/tasks/cron.yml
+# ---
+
+cron_env_entries:
+  - name: PATH
+    job: /root/bin/admin-stuff:/root/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+  - name: SHELL
+    job: /bin/bash
+    insertafter: PATH
+
+
+cron_user_entries:
+
+  - name: "Restart Prosody Servive (used by Jitsi Meet Authentification)"
+    minute: 57
+    hour: 05
+    job: systemctl restart prosody.service
+
+  - name: "Check if cert for coTURN service is up-to-date"
+    minute: 03
+    hour: 05
+    job: /root/bin/monitoring/check_cert_for_service.sh
+
+  - name: "Check if cert(s) for Prosody service are up-to-date"
+    minute: 13
+    hour: 07
+    job: /root/bin/monitoring/check_cert_for_prosody.sh
+
+  - name: "Check if SSH service is running. Restart service if needed."
+    minute: '*/5'
+    hour: '*'
+    job: /root/bin/monitoring/check_ssh.sh
+
+  - name: "Check if Postfix Mailservice is up and running?"
+    minute: '*/15'
+    hour: '*'
+    job: /root/bin/monitoring/check_postfix.sh
+
+  - name: "Check Postfix E-Mail LOG file for 'fatal' errors.."
+    minute: '*/5'
+    hour: '*'
+    job: /root/bin/postfix/check-postfix-fatal-errors.sh
+
+  - name: "Generate/Renew Let's Encrypt Certificates if needed (using dehydrated script)"
+    minute: '23'
+    hour: '05'
+    job: /var/lib/dehydrated/cron/dehydrated_cron.sh
+
+  - name: "Check whether all certificates are included in the VHOST configurations"
+    minute: '33'
+    hour: '05'
+    job: /var/lib/dehydrated/tools/update_ssl_directives.sh
+
+
 # ---
 # vars used by roles/common/tasks/users.yml
 # ---