初始化项目，由ModelHub XC社区提供模型

Model: infgrad/Prism-Qwen3-Reranker-4B-exp
Source: Original Platform

config_sentence_transformers.json

@@ -0,0 +1,7 @@
+{
+  "__version__": {
+    "sentence_transformers": "5.4.1"
+  },
+  "activation_fn": "torch.nn.modules.activation.Sigmoid",
+  "model_type": "CrossEncoder"
+}