feat：增强kotlin的BaseMapper语法糖以及dsl写法

[huicunjun]

增加BaseMapper 下所有AbstractWrapper 相关的方法的语法糖，如下，已有逻辑不改变。

新增类
BaseMapperExt.kt
CompareDsl.kt
DbExt.kt
FuncDsl.kt
WrapperExt.kt

`

val user: User? = selectOne {
eq(User::id, id)

        User::id eq id
        User::id ne id
        User::id le id
        User::id lt id
        User::id ge id
        User::id gt id

        User::id between ("2025-01-01 00:00:00" to "2025-01-01 23:23:59")

        User::name like "baomidou"
        User::name notLike "baomidou"
        User::name likeLeft "baomidou"
        User::name notLikeLeft "baomidou"
        User::name notLikeRight "baomidou"

        User::id.isNull
        User::id.isNotNull
        User::name isIn arrayOf("baomidou")
        User::name isIn listOf("baomidou")
        User::name isNotIn arrayOf("baomidou")
        User::name isNotIn listOf("baomidou")
    }

    val user2: User? =User::class.ktQuery {
        User::id eq id
        User::id ne id
    }.one()

    val user3: User? = ktQuery<User> {
        User::id eq id
        User::id ne id
        User::id le id
        User::id lt id
        User::id ge id
        User::id gt id

        User::id between ("2025-01-01 00:00:00" to "2025-01-01 23:23:59")

        User::name like "%baomidou%"
        User::name notLike "%baomidou%"
        User::name likeLeft "%baomidou%"
        User::name notLikeLeft "%baomidou%"
        User::name notLikeRight "%baomidou%"

        User::id.isNull
        User::id.isNotNull
        User::name isIn arrayOf("%baomidou%")
        User::name isIn listOf("%baomidou%")
        User::name isNotIn arrayOf("%baomidou%")
        User::name isNotIn listOf("%baomidou%")
    }.one()   

`

[Copilot]

Pull request overview

为 MyBatis-Plus 的 Kotlin 扩展增加 BaseMapper 的语法糖与 DSL 写法（基于 KtQueryWrapper / KtUpdateWrapper），通过 KProperty1 的中缀/扩展属性形式提升查询条件表达的可读性，同时补齐 KClass 构造入口以配合 reified 泛型构建 Wrapper。

Changes:

• 新增 CompareDsl / FuncDsl，并让 AbstractKtWrapper / KtQueryChainWrapper 实现，从而在 Kotlin lambda receiver 中支持 User::id eq id、User::id.isNull 等写法
• 新增 BaseMapper Kotlin 扩展与 Wrapper 构建函数（buildKtQueryWrapper/buildKtUpdateWrapper、BaseMapper.selectOne { ... } 等）
• 为 KtQueryWrapper / KtUpdateWrapper 增加 KClass<T> 构造函数，便于 T::class 直接传入

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 16 comments.

Show a summary per file

File	Description
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/WrapperExt.kt	新增基于 reified 的 Wrapper 构建入口
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/KtUpdateWrapper.kt	增加 KClass<T> 构造函数以支持 T::class
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/KtQueryWrapper.kt	增加 KClass<T> 构造函数以支持 T::class
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/KtQueryChainWrapper.kt	将 DSL 接口挂到 Chain Wrapper 上以支持链式 DSL
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/FuncDsl.kt	新增 isNull/isIn/isNotIn 等函数型 DSL
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/DbExt.kt	新增 ktQuery { ... } 顶层/KClass 扩展入口
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/CompareDsl.kt	新增 eq/ne/gt/.../between/like 等比较型 DSL
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/BaseMapperExt.kt	新增 BaseMapper 的 Kotlin 语法糖调用入口
mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/AbstractKtWrapper.kt	将 DSL 接口接入所有 Kotlin Wrapper 基类

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