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/_plugin_b_enable_and_configure.yml

@@ -0,0 +1,47 @@
+- name: enable {{ plugin_key }} nextcloud plugin
+  command: "{{ NEXTCLOUD_DOCKER_EXEC_OCC }} app:enable {{ plugin_key }}"
+  register: enable_result
+  changed_when: enable_result.rc == 0 and ("already enabled" not in enable_result.stdout)
+
+- name: Check if {{ plugin_vars_path }} exists
+  stat:
+    path: "{{ plugin_vars_path }}"
+  delegate_to: localhost
+  become: false
+  register: plugin_vars_file
+
+- name: "Load {{ plugin_key }} configuration variables"
+  include_vars:
+    file: "{{ plugin_vars_path }}"
+  when: plugin_vars_file.stat.exists
+
+- name: "Set plugin configuration (batched shell, no async)"
+  ansible.builtin.shell: |
+    set -euo pipefail
+    {% for item in (plugin_configuration | default([])) %}
+    {{ NEXTCLOUD_DOCKER_EXEC_OCC }} \
+      config:app:set {{ item.appid }} {{ item.configkey }} \
+      --value '{{ ( (item.configvalue | to_json) if (item.configvalue is mapping) else (item.configvalue | string) ) 
+            | regex_replace("'", "'" ~ '"' ~ "'" ~ '"' ~ "'") }}'
+    {% endfor %}
+  args:
+    executable: /bin/bash
+  when: plugin_vars_file.stat.exists
+  register: config_set_shell
+  changed_when: >
+    not ASYNC_ENABLED and
+    (config_set_shell.stdout | default('')) is search(' set to ')
+  failed_when: not ASYNC_ENABLED and config_set_shell.rc != 0
+  async: "{{ ASYNC_TIME if ASYNC_ENABLED | bool else omit }}"
+  poll:  "{{ ASYNC_POLL if ASYNC_ENABLED | bool else omit }}"
+
+- name: Check if {{ plugin_task_path }} exists
+  stat:
+    path: "{{ plugin_task_path }}"
+  delegate_to: localhost
+  become: false
+  register: plugin_tasks_file
+
+- name: "include {{ plugin_task_path }}"
+  include_tasks: "{{ plugin_task_path }}"
+  when: plugin_tasks_file.stat.exists