fix: replace ini_file with lineinfile for reliable work_place substitution

ansible/playbooks/migrate_to_wmt.yml

@@ -57,24 +57,28 @@
 
     - name: Decode idmasa value
       set_fact:
-        work_place_value: "{{ (idmasa_raw.content | b64decode).strip() }}"
+        work_place_value: "{{ idmasa_raw.content | b64decode | trim }}"
 
     - name: Show detected work_place value
       debug:
         msg: "work_place will be set to: '{{ work_place_value }}'"
 
-    # ── 5. Ensure config.txt has a [device] section with work_place ───────
-    - name: Ensure [device] section exists in config.txt
-      ini_file:
+    # ── 5. Replace work_place value in WMT/data/config.txt ───────────────
+    - name: Replace work_place in WMT config.txt
+      lineinfile:
         path: /home/pi/Desktop/WMT/data/config.txt
-        section: device
-        option: work_place
-        value: "{{ work_place_value }}"
+        regexp: '^work_place\s*=.*'
+        line: "work_place={{ work_place_value }}"
         backup: true
-        create: true
-        owner: pi
-        group: pi
-        mode: '0644'
+
+    - name: Confirm work_place change
+      command: grep 'work_place' /home/pi/Desktop/WMT/data/config.txt
+      register: wp_check
+      changed_when: false
+
+    - name: Show work_place line in config.txt
+      debug:
+        msg: "{{ wp_check.stdout }}"
 
     # ── 6. Update wayfire.ini autostart to launch from WMT ───────────────
     - name: Update wayfire.ini start_python path from Prezenta to WMT