Feat: Add Hallucination Detection Gatekeeper (#799)

* feat: add hallucination detection gatekeeper

Signed-off-by: bitliu <[email protected]>

* fix: ci failures

Signed-off-by: bitliu <[email protected]>

---------

Signed-off-by: bitliu <[email protected]>

Author: Xunzhuo

.gitattributes

@@ -9,3 +9,4 @@
 *.gif binary
 *.ico binary
 *.svg binary
+*.pdf binary

.gitignore

@@ -158,3 +158,10 @@ dashboard/frontend/index.html.old
 
 # Kind cluster configuration
 tools/kind/kind-config.yaml
+FaithDial_dataset/
+FactCHD_dataset/
+
+# Trained model outputs (should use HuggingFace Hub or model registry)
+**/lora_*_model/
+**/lora_*_model_rust/
+*.safetensors