feat: 课程列表SQL版

完善了所有查询条件，并完善导出接口

servers/boe-server-all/src/main/java/com/xboe/enums/CourseCreateFromEnum.java

@@ -0,0 +1,31 @@
+package com.xboe.enums;
+
+import lombok.Getter;
+
+import java.util.Arrays;
+
+/**
+ * 课程创建来源
+ * boe_course.create_from
+ */
+@Getter
+public enum CourseCreateFromEnum {
+
+    ADMIN("admin", "管理端"),
+
+    TEACHER("teacher", "教师端")
+    ;
+
+    private final String code;
+
+    private final String label;
+
+    CourseCreateFromEnum(String code, String label) {
+        this.code = code;
+        this.label = label;
+    }
+
+    public static CourseCreateFromEnum getByCode(String code) {
+        return Arrays.stream(values()).filter(item -> item.code.equals(code)).findFirst().orElse(ADMIN);
+    }
+}