add MMDL task management service deployment

- Add MMDL (Manage My Damn Life) task and calendar management service
- Configure NextAuth with Authentik OIDC integration
- Use MySQL 8.0 with proper authentication plugin
- Include Glance dashboard integration
- Add to main docker deployment pipeline

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

roles/docker/tasks/main.yml

@@ -169,4 +169,8 @@
 
 - name: Install manyfold
   import_tasks: manyfold.yml
-  tags: manyfold
+  tags: manyfold
+
+- name: Install mmdl
+  import_tasks: mmdl.yml
+  tags: mmdl

roles/docker/tasks/mmdl.yml

@@ -0,0 +1,25 @@
+---
+- name: Create mmdl directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+  loop:
+    - /opt/stacks/mmdl
+    - /opt/stacks/mmdl/data
+    - /opt/stacks/mmdl/mysql
+
+- name: Template mmdl environment file
+  ansible.builtin.template:
+    src: mmdl-env.j2
+    dest: /opt/stacks/mmdl/.env.local
+
+- name: Template mmdl compose file
+  ansible.builtin.template:
+    src: mmdl-compose.yml.j2
+    dest: /opt/stacks/mmdl/compose.yml
+
+- name: Deploy mmdl stack
+  community.docker.docker_compose_v2:
+    project_src: /opt/stacks/mmdl
+    files:
+      - compose.yml