added a new intent for crm referral

src/agent/intent_classifier.py

@@ -16,6 +16,7 @@ class IntentType(Enum):
     HYBRID_QUERY = "hybrid_query"
     CONVERSATIONAL = "conversational"
     AMBIGUOUS = "ambiguous"
+    CRM_REFERRAL = "crm_referral"
 
 
 @dataclass