fix: enforce atomic agent registration contract

sdks/python/elydora/async_client.py

@@ -11,6 +11,7 @@ import aiohttp
 
 from .crypto import compute_chain_hash, compute_payload_hash, sign_eor
 from .errors import ElydoraError
+from .integration_types import require_integration_type
 from .types import (
     AuditQueryResponse,
     AuthLoginResponse,
@@ -231,6 +232,7 @@ class AsyncElydoraClient:
 
     async def register_agent(self, request: RegisterAgentRequest) -> RegisterAgentResponse:
         """Register a new agent with the organization."""
+        require_integration_type(request.get("integration_type"))
         return await self._request("POST", "/v1/agents/register", json_body=request)
 
     async def get_agent(self, agent_id: str) -> GetAgentResponse: