BigBlueButton & Nextcloud:

- Switch to custom BBB Docker repository
- Externalize Coturn and Collabora by default
- Add dedicated 03_dependencies.yml for dependency handling
- Improve env templating with lowercased feature flags
- Add conditional healthcheck for Greenlight
- Refactor TURN/STUN/relay handling with role variable _BBB_COTURN_ROLE
- Extend Collabora/Greenlight dependency wiring in override file
- Nextcloud Talk: refine vars and enable/disable logic with separate plugin/service flags, add network_mode support and conditional nginx proxy block

Ref: https://chatgpt.com/share/68d741ff-a544-800f-9e81-a565e0bab0eb

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

@@ -67,14 +67,5 @@
 - name: "Setup administrator"
   include_tasks: "02_administrator.yml"
 
-
-- name: "Load Coturn Role for '{{ application_id }}'"
-  include_role:
-    name: web-svc-coturn
-  vars:
-    flush_handlers: true
-  when:    
-    - run_once_web_svc_coturn is not defined
-    - not BBB_INTERNAL_COTURN_ENABLED
-
-
+- name: "Load '{{ application_id }}' dependencies"
+  include_tasks: "03_dependencies.yml"