sway: create /etc/xdg/xdg-desktop-portal before writing portal config

The portal config copy assumed the parent directory existed, but on a
fresh install xdg-desktop-portal hasn't shipped it yet. Add an explicit
file directory task ahead of the copy so the playbook is robust on
hosts that don't already have it.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

ansible/roles/profile_desktop_sway/tasks/main.yml

@@ -37,6 +37,16 @@
     mode: "0755"
   when: "'sway' in (desktop_sessions_enabled | default([]))"
 
+- name: Ensure /etc/xdg/xdg-desktop-portal exists
+  tags: [packages, services, sway, portal]
+  ansible.builtin.file:
+    path: /etc/xdg/xdg-desktop-portal
+    state: directory
+    owner: root
+    group: root
+    mode: "0755"
+  when: "'sway' in (desktop_sessions_enabled | default([]))"
+
 - name: Configure xdg-desktop-portal backend preferences for sway
   tags: [packages, services, sway, portal]
   ansible.builtin.copy: