feat(api-gateway): add Odoo config model and endpoints

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

services/api-gateway/app/models/__init__.py

@@ -5,6 +5,7 @@ from app.models.queue import Queue, QueueAgent, AssignmentMethod
 from app.models.quick_reply import QuickReply
 from app.models.global_variable import GlobalVariable
 from app.models.flow_template import FlowTemplate
+from app.models.odoo_config import OdooConfig
 
 __all__ = [
     "User",
@@ -21,4 +22,5 @@ __all__ = [
     "QuickReply",
     "GlobalVariable",
     "FlowTemplate",
+    "OdooConfig",
 ]