- Store catz member zone identifiers in database, linked to the corresponding zone object.

- Catz member identifiers are created from uuid encoded in base32, lower-cased, and padding removed.
- On endpoint startup, make sure all zones have a catz identifier assigned. If not, create them.
- Use signals to create or update a zone's catz identifier.

src/netbox_plugin_bind_provisioner/utils.py

@@ -4,6 +4,7 @@ import dns.rdatatype
 import dns.rdataclass
 import dns.exception
 import netbox_dns.models
+import uuid, base64
 
 def export_bind_zone_file(nb_zone: netbox_dns.models.Zone, file_path: str):
 
@@ -33,3 +34,6 @@ def export_bind_zone_file(nb_zone: netbox_dns.models.Zone, file_path: str):
     except IOError as e:
         raise IOError(f"Failed to write zone file to {file_path}: {e}")
 
+
+def generate_catz_member_identifier():
+    return base64.b32encode(uuid.uuid4().bytes)[0:26].lower().decode('UTF-8')