fix empty string gemini issue

rekabet_mcp_module/client.py

@@ -59,7 +59,7 @@ class RekabetKurumuApiClient:
         
         karar_turu_id_value = ""
         if params.KararTuruID is not None: 
-            karar_turu_id_value = params.KararTuruID.value 
+            karar_turu_id_value = params.KararTuruID.value if params.KararTuruID.value != "ALL" else "" 
         query_params.append(("KararTuruID", karar_turu_id_value))
             
         query_params.append(("KararSayisi", params.KararSayisi if params.KararSayisi is not None else ""))

rekabet_mcp_module/models.py

@@ -6,7 +6,7 @@ from enum import Enum
 
 # Enum for decision type GUIDs (used by the client and expected by the website)
 class RekabetKararTuruGuidEnum(str, Enum):
-    TUMU = ""  # Represents "All" or "Select Decision Type"
+    TUMU = "ALL"  # Represents "All" or "Select Decision Type"
     BIRLESME_DEVRALMA = "2fff0979-9f9d-42d7-8c2e-a30705889542"  # Merger and Acquisition
     DIGER = "dda8feaf-c919-405c-9da1-823f22b45ad9"  # Other
     MENFI_TESPIT_MUAFIYET = "95ccd210-5304-49c5-b9e0-8ee53c50d4e8"  # Negative Clearance and Exemption