fix: Gitea Traefik routing and connection pool optimization

- Remove middleware reference from Gitea Traefik labels (caused routing issues)
- Optimize Gitea connection pool settings (MAX_IDLE_CONNS=30, authentication_timeout=180s)
- Add explicit service reference in Traefik labels
- Fix intermittent 504 timeouts by improving PostgreSQL connection handling

Fixes Gitea unreachability via git.michaelschiemer.de

deployment/ansible/roles/application/tasks/health_check.yml

@@ -0,0 +1,80 @@
+---
+# Health Check Tasks
+
+- name: Get container status
+  ansible.builtin.shell: |
+    cd {{ application_code_dest }}
+    docker compose -f docker-compose.base.yml -f docker-compose.{{ application_compose_suffix }} ps {{ application_container_status_services | default('queue-worker web scheduler php') }}
+  register: container_status
+  changed_when: false
+
+- name: Display container status
+  ansible.builtin.debug:
+    msg: |
+      {{ container_status.stdout }}
+  when: application_show_status | default(true) | bool
+
+- name: Get queue-worker logs (last N lines)
+  ansible.builtin.shell: |
+    cd {{ application_code_dest }}
+    docker compose -f docker-compose.base.yml -f docker-compose.{{ application_compose_suffix }} logs --tail={{ application_health_check_logs_tail | default(20) }} queue-worker 2>&1 || true
+  register: queue_worker_logs
+  changed_when: false
+
+- name: Display queue-worker logs
+  ansible.builtin.debug:
+    msg: |
+      ================
+      Queue-Worker Logs:
+      ================
+      {{ queue_worker_logs.stdout }}
+  when: application_show_status | default(true) | bool
+
+- name: Get scheduler logs (last N lines)
+  ansible.builtin.shell: |
+    cd {{ application_code_dest }}
+    docker compose -f docker-compose.base.yml -f docker-compose.{{ application_compose_suffix }} logs --tail={{ application_health_check_logs_tail | default(20) }} scheduler 2>&1 || true
+  register: scheduler_logs
+  changed_when: false
+
+- name: Display scheduler logs
+  ansible.builtin.debug:
+    msg: |
+      ================
+      Scheduler Logs:
+      ================
+      {{ scheduler_logs.stdout }}
+  when: application_show_status | default(true) | bool
+
+- name: Get web container logs (last N lines)
+  ansible.builtin.shell: |
+    cd {{ application_code_dest }}
+    docker compose -f docker-compose.base.yml -f docker-compose.{{ application_compose_suffix }} logs --tail={{ application_health_check_logs_tail | default(20) }} web 2>&1 || true
+  register: web_logs
+  changed_when: false
+
+- name: Display web container logs
+  ansible.builtin.debug:
+    msg: |
+      ================
+      Web Container Logs:
+      ================
+      {{ web_logs.stdout }}
+  when: application_show_status | default(true) | bool
+
+- name: Get all container status (final status check)
+  ansible.builtin.shell: |
+    cd {{ application_code_dest }}
+    docker compose -f docker-compose.base.yml -f docker-compose.{{ application_compose_suffix }} ps
+  register: all_containers
+  changed_when: false
+  when: application_health_check_final | default(false) | bool
+
+- name: Display all container status (final)
+  ansible.builtin.debug:
+    msg: |
+      {{ all_containers.stdout }}
+  when:
+    - application_health_check_final | default(false) | bool
+    - application_show_status | default(true) | bool
+