refactor(detmir): retire python runtime paths

ansible/roles/dlp-case-management/tasks/main.yml

@@ -1,55 +1,7 @@
 ---
-- name: Ensure DLP case management directory
-  ansible.builtin.file:
-    path: /opt/activitywatch/dlp-case-management
-    state: directory
-    owner: "{{ aw_server_user | default('activitywatch') }}"
-    group: "{{ aw_server_group | default('activitywatch') }}"
-    mode: "0755"
-
-- name: Copy DLP case management files
-  ansible.builtin.copy:
-    src: "{{ playbook_dir }}/../aw-server/dlp-case-management/{{ item }}"
-    dest: "/opt/activitywatch/dlp-case-management/{{ item }}"
-    owner: "{{ aw_server_user | default('activitywatch') }}"
-    group: "{{ aw_server_group | default('activitywatch') }}"
-    mode: "0644"
-  loop:
-    - case_service.py
-    - case_schema.py
-    - case_storage.py
-    - evidence_chain.py
-    - requirements.txt
-
-- name: Make case service executable
-  ansible.builtin.file:
-    path: /opt/activitywatch/dlp-case-management/case_service.py
-    owner: "{{ aw_server_user | default('activitywatch') }}"
-    group: "{{ aw_server_group | default('activitywatch') }}"
-    mode: "0755"
-
-- name: Create venv for DLP case management
-  ansible.builtin.command:
-    cmd: python3 -m venv /opt/activitywatch/dlp-case-management/.venv
-  args:
-    creates: /opt/activitywatch/dlp-case-management/.venv/bin/python
-
-- name: Install Python dependencies for DLP case management
-  ansible.builtin.pip:
-    requirements: /opt/activitywatch/dlp-case-management/requirements.txt
-    virtualenv: /opt/activitywatch/dlp-case-management/.venv
-
-- name: Install systemd unit DLP case management
-  ansible.builtin.copy:
-    src: "{{ playbook_dir }}/../aw-server/dlp-case-management/case-service.service"
-    dest: /etc/systemd/system/aw-dlp-case-management.service
-    owner: root
-    group: root
-    mode: "0644"
-
-- name: Reload systemd and restart DLP case management
-  ansible.builtin.systemd:
-    name: aw-dlp-case-management.service
-    daemon_reload: true
-    enabled: true
-    state: restarted
+- name: Deprecated role guard - DLP case management is Rust-only
+  ansible.builtin.fail:
+    msg: >-
+      ansible/roles/dlp-case-management is deprecated because it deployed the old
+      Python runtime. Use ansible/deploy_aw_server.yml, which installs
+      /usr/local/bin/aw-dlp-case-management-rust from adk-rust.