Add docker-compose configurations and SSL troubleshooting docs

- Added compose files for core, infrastructure, and dashboards stacks
- Added Traefik, Authelia, and DuckDNS configuration files
- Added dockge.managed and dockge.url labels to all services
- Updated Watchtower to latest version with DOCKER_API_VERSION=1.44
- Created comprehensive SSL certificate troubleshooting guide for DuckDNS issues

docker-compose/core/authelia/configuration.yml

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+# Authelia Configuration
+# Copy to /opt/stacks/authelia/configuration.yml
+# IMPORTANT: Replace 'kelin-hass.duckdns.org' with your actual DuckDNS domain
+
+server:
+  host: 0.0.0.0
+  port: 9091
+
+log:
+  level: info
+
+theme: dark
+
+jwt_secret: ${AUTHELIA_JWT_SECRET}
+
+default_redirection_url: https://auth.kelin-hass.duckdns.org
+
+totp:
+  issuer: kelin-hass.duckdns.org
+  period: 30
+  skew: 1
+
+authentication_backend:
+  file:
+    path: /config/users_database.yml
+    password:
+      algorithm: argon2id
+      iterations: 1
+      key_length: 32
+      salt_length: 16
+      memory: 1024
+      parallelism: 8
+
+access_control:
+  default_policy: deny
+  
+  rules:
+    # Bypass Authelia for Jellyfin (allow app access)
+    - domain: jellyfin.kelin-hass.duckdns.org
+      policy: bypass
+    
+    # Bypass for Plex (allow app access)
+    - domain: plex.kelin-hass.duckdns.org
+      policy: bypass
+    
+    # Bypass for Home Assistant (has its own auth)
+    - domain: ha.kelin-hass.duckdns.org
+      policy: bypass
+    
+    # Protected: All other services require authentication
+    - domain: "*.kelin-hass.duckdns.org"
+      policy: one_factor
+    
+    # Two-factor for admin services (optional)
+    # - domain:
+    #     - "admin.kelin-hass.duckdns.org"
+    #     - "portainer.kelin-hass.duckdns.org"
+    #   policy: two_factor
+
+session:
+  name: authelia_session
+  secret: ${AUTHELIA_SESSION_SECRET}
+  expiration: 1h
+  inactivity: 5m
+  remember_me_duration: 1M
+  domain: kelin-hass.duckdns.org
+
+regulation:
+  max_retries: 3
+  find_time: 2m
+  ban_time: 5m
+
+storage:
+  encryption_key: ${AUTHELIA_STORAGE_ENCRYPTION_KEY}
+  local:
+    path: /data/db.sqlite3
+
+notifier:
+  # File-based notifications (for development/testing)
+  filesystem:
+    filename: /data/notification.txt

docker-compose/core/authelia/users_database.yml

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+###############################################################
+#                         Users Database                      #
+###############################################################
+
+users:
+  kelin:
+    displayname: "kelin"
+    password: "$argon2id$v=19$m=65536,t=3,p=4$GirJvw4ecHIr1nnM3ALpwg$7+XjPev3P7AwEveRw5yiq5OmsitXYQp5xR8AxWjDNbI"
+    email: kelinfoxy@gmail.com
+    groups:
+      - admins
+      - dev