(improvement)(chat) Modify the default URL and model of zhipu, and enable search support for qwen. (#1578)

common/src/main/java/dev/langchain4j/model/zhipu/ChatCompletionModel.java

@@ -0,0 +1,18 @@
+package dev.langchain4j.model.zhipu;
+
+public enum ChatCompletionModel {
+    GLM_4("glm-4"),
+    GLM_3_TURBO("glm-3-turbo"),
+    CHATGLM_TURBO("chatglm_turbo");
+
+    private final String value;
+
+    ChatCompletionModel(String value) {
+        this.value = value;
+    }
+
+    @Override
+    public String toString() {
+        return this.value;
+    }
+}