[ADD] is_company_detail_empty Boolean on res.brand

The field works like on res.company model

[FIX] add missing import

[IMP] formatting

brand_external_report_layout/models/res_brand.py

@@ -67,13 +67,21 @@ def _get_default_brand_logo(self):
         string="Brand Details",
         help="Header text displayed at the top of all reports.",
     )
+    is_company_details_empty = fields.Boolean(compute="_compute_empty_company_details")
     layout_background = fields.Selection(
         [("Blank", "Blank"), ("Geometric", "Geometric"), ("Custom", "Custom")],
         default="Blank",
         required=True,
     )
     layout_background_image = fields.Binary("Background Image")
 
+    @api.depends("company_details")
+    def _compute_empty_company_details(self):
+        for record in self:
+            record.is_company_details_empty = not tools.html2plaintext(
+                record.company_details or ""
+            )
+
     def change_report_template(self):
         self.ensure_one()
         context = {"default_brand_id": self.id}