Update config to use custom model class

config.json

@@ -1,12 +1,12 @@
 {
   "_name_or_path": "lukeingawesome/llm2vec4cxr",
   "architectures": [
-    "LlamaBiModel"
+    "LLM2Vec4CXRModel"
   ],
   "attention_bias": false,
   "attention_dropout": 0.0,
   "auto_map": {
-    "AutoModel": "microsoft/LLM2CLIP-Llama-3.2-1B-Instruct-CC-Finetuned--modeling_bidirectional_llama_encoder.LlamaBiModel"
+    "AutoModel": "modeling_llm2vec4cxr.LLM2Vec4CXRModel"
   },
   "base_model": "microsoft/LLM2CLIP-Llama-3.2-1B-Instruct-CC-Finetuned",
   "bos_token_id": 128000,