Refactor user management in Ansible playbooks to standardize on keeper_user

- Updated user addition tasks across multiple playbooks (mcp_switchboard, mcpo, neo4j, neo4j_mcp, openwebui, postgresql, rabbitmq, searxng, smtp4dev) to replace references to ansible_user and remote_user with keeper_user.
- Modified PostgreSQL deployment to create directories and manage files under keeper_user's home.
- Enhanced documentation to clarify account taxonomy and usage of keeper_user in playbooks.
- Introduced new deployment for Agent S, including environment setup, desktop environment installation, XRDP configuration, and accessibility support.
- Added staging playbook for preparing release tarballs from local repositories.
- Created templates for XRDP configuration and environment activation scripts.
- Removed obsolete sunwait documentation.

ansible/postgresql/deploy.yml

@@ -48,31 +48,31 @@
   - name: Create gh directory
     become: true
     ansible.builtin.file:
-      path: /home/{{ remote_user }}/gh
+      path: "{{ keeper_home }}/gh"
       state: directory
-      owner: "{{ remote_user }}"
-      group: "{{ remote_user }}"
+      owner: "{{ keeper_user }}"
+      group: "{{ keeper_group }}"
       mode: '755'
 
   - name: Clone pgvector repository
     become: true
-    become_user: "{{ remote_user }}"
+    become_user: "{{ keeper_user }}"
     ansible.builtin.git:
       repo: https://github.com/pgvector/pgvector.git
-      dest: /home/{{ remote_user }}/gh/pgvector
+      dest: "{{ keeper_home }}/gh/pgvector"
       version: v0.8.0
       force: true
 
   - name: Build pgvector
     become: true
-    become_user: "{{ remote_user }}"
+    become_user: "{{ keeper_user }}"
     ansible.builtin.make:
-      chdir: /home/{{ remote_user }}/gh/pgvector
+      chdir: "{{ keeper_home }}/gh/pgvector"
 
   - name: Install pgvector
     become: true
     ansible.builtin.make:
-      chdir: /home/{{ remote_user }}/gh/pgvector
+      chdir: "{{ keeper_home }}/gh/pgvector"
       target: install
 
   - name: Ensure PostgreSQL is running
@@ -121,7 +121,7 @@
   - name: Build pgvector with correct pg_config
     become: true
     ansible.builtin.shell: |
-      cd /home/{{ remote_user }}/gh/pgvector
+      cd {{ keeper_home }}/gh/pgvector
       make clean
       # Use the specific pg_config for the installed version
       PG_CONFIG_PATH=$(ls /usr/bin/pg_config-* | head -1)