feat(nextcloud): integrate Talk & Whiteboard; refactor to NEXTCLOUD_* vars; full-stack setup

config(ports): add Nextcloud websocket port (4003); canonical domains (nextcloud/talk/whiteboard)

refactor: unify get_app_conf usage & Jinja spacing; migrate paths/handlers to new NEXTCLOUD_* vars

feat(plugins): split plugin routines; configure Whiteboard via occ (URL + JWT)

fix(oidc): use NEXTCLOUD_URL for logout; correct LDAP attribute mappings; add OIDC flavor switch

feat: Whiteboard container & reverse-proxy location; Talk STUN/WS ports; Redis URL for Whiteboard

chore: drop obsolete TODO; minor cleanups in oauth2-proxy, matrix, peertube, pgadmin, phpldapadmin, pixelfed, phpmyadmin

security(schema): Bluesky jwt_secret now base64_prefixed_32; add Nextcloud whiteboard_jwt_secret

db: normalize postgres image tag templating; central DB host checks spacing fixes

ops: add full-stack bootstrap (certs, proxy, volumes); internal nginx config reload handler update

refs: https://chatgpt.com/share/68b5f5b7-8d64-800f-b001-1241f818dc0e

roles/web-app-nextcloud/tasks/plugins/richdocuments.yml

@@ -0,0 +1,7 @@
+- name: "Install Collabora Dependency"
+  include_role:
+    name: web-svc-collabora
+  vars:
+    flush_handlers: true
+  when:    
+    - run_once_web_svc_collabora is not defined

roles/web-app-nextcloud/tasks/plugins/whiteboard.yml

@@ -0,0 +1,9 @@
+- name: Set Whiteboard Configuration
+  ansible.builtin.shell: >
+    {{ NEXTCLOUD_DOCKER_EXEC_OCC }} config:app:set whiteboard collabBackendUrl --value='{{ NEXTCLOUD_WHITEBOARD_URL }}'
+    && {{ NEXTCLOUD_DOCKER_EXEC_OCC }} config:app:set whiteboard jwt_secret_key --value='{{ NEXTCLOUD_WHITEBOARD_JWT }}'
+  args:
+    executable: /bin/bash
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED | bool else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED | bool else omit }}"
+  no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"