refactor(web-app-shopware): make init script idempotent and handle admin via Ansible

- moved init.sh from template to files/ for direct copying and bind mounting
- removed hardcoded user creation from init process
- added database emptiness check before running system:install
- added new task 03_admin.yml to ensure admin user exists and update password/email via Ansible
- switched docker exec shell from bash to sh for Alpine compatibility
- updated Dockerfile and docker-compose.yml accordingly for mount-based init script

roles/web-app-shopware/tasks/03_admin.yml

@@ -0,0 +1,19 @@
+# Ensures that the admin user exists and always has the desired password
+- name: "Ensure Shopware admin exists and has the desired password"
+  shell: |
+    docker exec -i --user {{ SHOPWARE_USER }} {{ SHOPWARE_WEB_CONTAINER }} sh -lc '
+      set -e
+      cd {{ SHOPWARE_ROOT }}
+      php bin/console user:create "{{ users.administrator.username }}" \
+        --admin \
+        --password="{{ users.administrator.password }}" \
+        --firstName="{{ users.administrator.username }}" \
+        --lastName="{{ PRIMARY_DOMAIN | lower }}" \
+        --email="{{ users.administrator.email }}" || true
+      php bin/console user:change-password "{{ users.administrator.username }}" \
+        --password="{{ users.administrator.password }}" || true
+      php bin/console user:update "{{ users.administrator.username }}" \
+        --email="{{ users.administrator.email }}" 2>/dev/null || true
+    '
+  args:
+    chdir: "{{ docker_compose.directories.instance }}"

roles/web-app-shopware/tasks/main.yml

@@ -6,9 +6,10 @@
     docker_compose_flush_handlers: false
 
 - name: "Deploy {{ SHOPWARE_INIT_HOST }}"
-  template:
-    src:  init.sh.j2
+  copy:
+    src:  init.sh
     dest: "{{ SHOPWARE_INIT_HOST }}"
+    mode: "0755"
   notify:
     - docker compose up
     - docker compose build
@@ -23,6 +24,9 @@
     delay: 5
     timeout: 300
 
+- name: "Ensure admin user exists with correct password"
+  include_tasks: 03_admin.yml
+
 - name: "Warm up caches and index"
   shell: |
     docker exec -i --user {{ SHOPWARE_USER }} {{ SHOPWARE_WEB_CONTAINER }} bash -lc '