refactor: 简化实体类并使用esbuild优化构建

Co-authored-by: aider (openai/gemini-2.5-pro) <aider@aider.chat>

biji-houdaun/src/main/java/com/test/bijihoudaun/entity/RegistrationCode.java

@@ -30,44 +30,4 @@ public class RegistrationCode implements Serializable {
 
     @Schema(description = "创建时间", name = "createdAt")
     private String createdAt;
-
-    public Long getId() {
-        return id;
-    }
-
-    public void setId(Long id) {
-        this.id = id;
-    }
-
-    public String getCode() {
-        return code;
-    }
-
-    public void setCode(String code) {
-        this.code = code;
-    }
-
-    public String getExpiryTime() {
-        return expiryTime;
-    }
-
-    public void setExpiryTime(String expiryTime) {
-        this.expiryTime = expiryTime;
-    }
-
-    public String getCreatedBy() {
-        return createdBy;
-    }
-
-    public void setCreatedBy(String createdBy) {
-        this.createdBy = createdBy;
-    }
-
-    public String getCreatedAt() {
-        return createdAt;
-    }
-
-    public void setCreatedAt(String createdAt) {
-        this.createdAt = createdAt;
-    }
-}
+}