fix: add startup command in nextgen chart to ensure data directory and DB initialization

k8s/nextgen/next-gen-chart/templates/deployment.yaml

@@ -19,9 +19,14 @@ spec:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            - sh
+            - -c
+            - "mkdir -p /app/data && ([ -f /app/data/school.db ] || node src/database/init.js) && node src/index.js"
           ports:
             - name: http
               containerPort: {{ .Values.service.port }}
               protocol: TCP
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
+