Merge pull request #1468 from opengisch/QF-6891-display-secret-creation-date

feat: add 'created_at' to readonly and list display fields in SecretAdmin

Author: Rakanhf

docker-app/qfieldcloud/core/admin.py

@@ -763,16 +763,18 @@ class SecretAdmin(QFieldCloudModelAdmin):
         "project",
         "organization",
         "created_by",
+        "created_at",
         "value",
     )
-    readonly_fields = ("created_by",)
+    readonly_fields = ("created_by", "created_at")
     list_display = (
         "name",
         "type",
         "assigned_to",
         "project__name",
         "organization",
         "created_by__link",
+        "created_at",
     )
     autocomplete_fields = ("project",)