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/playbooks/sync-stacks.yml

@@ -5,8 +5,8 @@
   gather_facts: yes
 
   vars:
-    local_stacks_path: "/home/michael/dev/michaelschiemer/deployment/stacks"
-    remote_stacks_path: "~/deployment"
+    local_stacks_path: "{{ playbook_dir }}/../../stacks"
+    remote_stacks_path: "{{ stacks_base_path | default('/home/deploy/deployment/stacks') }}"
 
   tasks:
     - name: Ensure deployment directory exists on production
@@ -14,10 +14,12 @@
         path: "{{ remote_stacks_path }}"
         state: directory
         mode: '0755'
+        owner: "{{ ansible_user }}"
+        group: "{{ ansible_user }}"
 
     - name: Sync stacks directory to production server
       synchronize:
-        src: "{{ local_stacks_path }}"
+        src: "{{ local_stacks_path }}/"
         dest: "{{ remote_stacks_path }}/"
         delete: no
         recursive: yes
@@ -27,20 +29,28 @@
           - "--exclude=*.log"
           - "--exclude=data/"
           - "--exclude=volumes/"
+          - "--exclude=acme.json"
+          - "--exclude=*.key"
+          - "--exclude=*.pem"
+          - "--exclude=app.ini"
+          - "--exclude=app.ini.minimal"
 
     - name: Ensure executable permissions on PostgreSQL backup scripts
       file:
         path: "{{ item }}"
         mode: '0755'
       loop:
-        - "{{ remote_stacks_path }}/stacks/postgresql/scripts/backup-entrypoint.sh"
-        - "{{ remote_stacks_path }}/stacks/postgresql/scripts/backup.sh"
-        - "{{ remote_stacks_path }}/stacks/postgresql/scripts/restore.sh"
+        - "{{ remote_stacks_path }}/postgresql-production/scripts/backup-entrypoint.sh"
+        - "{{ remote_stacks_path }}/postgresql-production/scripts/backup.sh"
+        - "{{ remote_stacks_path }}/postgresql-production/scripts/restore.sh"
+        - "{{ remote_stacks_path }}/postgresql-staging/scripts/backup-entrypoint.sh"
+        - "{{ remote_stacks_path }}/postgresql-staging/scripts/backup.sh"
+        - "{{ remote_stacks_path }}/postgresql-staging/scripts/restore.sh"
       ignore_errors: yes
 
     - name: Verify stacks directory exists on production
       stat:
-        path: "{{ remote_stacks_path }}/stacks"
+        path: "{{ remote_stacks_path }}"
       register: stacks_dir
 
     - name: Display sync results