Bump remaining apps: major version slots and infrastructure

New version slots (major version jumps):
- gitea: 1.24.3 -> 28.2.0 (slot 1 -> 28)
- ghost: 5.130.6 -> 6.72.0 (slot 5 -> 6)
- formbricks: 3.6.0 -> 6.1.0 (slot 3 -> 6)
- mattermost: 10.8.1 -> 12.0.1 (slot 10 -> 12)
- zulip: 9.4 -> 12.3 (slot 9 -> 12)
- immich: 1.135.3 -> 3.3.5 (slot 1 -> 3)
- openproject: 16.1.1 -> 17.9.3 (slot 16 -> 17)
- listmonk: 5.0.3 -> 6.1.0 (slot 5 -> 6)
- discourse: 3.5.3 -> 2026.10.0 (slot 3 -> 2026, calver)

Same-slot large bumps:
- vllm: 0.9.2 -> 0.32.0
- longhorn: v1.8.1 -> v1.13.0

Infrastructure:
- cert-manager: v1.17.2 -> v1.21.2
- coredns: v1.12.0 -> v1.14.7
- externaldns: v0.13.4 -> v0.23.0
- metallb: v0.15.0 -> v0.16.1
- mysql: 9.1.0 -> 9.7.4
- node-feature-discovery: v0.17.3 -> v0.20.1
- nvidia-device-plugin: v0.17.1 -> v0.20.1

discourse/versions/2026/db-init-job.yaml

@@ -0,0 +1,78 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: discourse-db-init
+  namespace: discourse
+spec:
+  template:
+    metadata:
+      labels:
+        component: db-init
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 999
+        runAsGroup: 999
+        seccompProfile:
+          type: RuntimeDefault
+      restartPolicy: OnFailure
+      containers:
+      - name: db-init
+        image: postgres:16-alpine
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+            - ALL
+          readOnlyRootFilesystem: false
+        env:
+        - name: PGHOST
+          value: "{{ .db.host }}"
+        - name: PGPORT
+          value: "5432"
+        - name: PGUSER
+          value: postgres
+        - name: PGPASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: discourse-secrets
+              key: postgres.password
+        - name: DISCOURSE_DB_USER
+          value: "{{ .db.user }}"
+        - name: DISCOURSE_DB_NAME
+          value: "{{ .db.name }}"
+        - name: DISCOURSE_DB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: discourse-secrets
+              key: dbPassword
+        command:
+        - /bin/sh
+        - -c
+        - |
+          echo "Initializing Discourse database..."
+          
+          # Create database if it doesn't exist
+          if ! psql -lqt | cut -d \| -f 1 | grep -qw "$DISCOURSE_DB_NAME"; then
+            echo "Creating database $DISCOURSE_DB_NAME..."
+            createdb "$DISCOURSE_DB_NAME"
+          else
+            echo "Database $DISCOURSE_DB_NAME already exists."
+          fi
+          
+          # Create user if it doesn't exist and grant permissions
+          psql -d "$DISCOURSE_DB_NAME" -c "
+            DO \$\$
+            BEGIN
+              IF NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = '$DISCOURSE_DB_USER') THEN
+                CREATE USER $DISCOURSE_DB_USER WITH PASSWORD '$DISCOURSE_DB_PASSWORD';
+              END IF;
+            END
+            \$\$;
+            ALTER USER $DISCOURSE_DB_USER WITH PASSWORD '$DISCOURSE_DB_PASSWORD';
+            GRANT ALL PRIVILEGES ON DATABASE $DISCOURSE_DB_NAME TO $DISCOURSE_DB_USER;
+            GRANT ALL ON SCHEMA public TO $DISCOURSE_DB_USER;
+            GRANT USAGE ON SCHEMA public TO $DISCOURSE_DB_USER;
+          "
+          
+          echo "Database initialization completed."