refactor(container): add default nil checker, rename RegisterNilChecker to SetNilChecker, migrate instance containers to type-safe generics

[LanceAdd]

变更说明

本 PR 主要对代码库进行了重构，以提升类型安全性和优化连接管理实现。

详细变更

1. 数据库连接管理优化

• 修改 RegisterNilChecker方法返回实例以支持链式调用，涉及 KVMap、ListKVMap、TSet、AVLKVTree、BKVTree、RedBlackKVTree 等多个容器类型
• 更新 Core结构体中 links字段类型为类型安全的 KVMap[ConfigNode, *sql.DB]
• 添加专门的链接检查器函数用于连接池管理
• 使用泛型 KVMap替代原始 map 类型提升类型安全性
• 简化连接关闭逻辑并移除不必要的类型断言
• 优化统计功能中的迭代器实现提高性能

2. 数据库驱动类型安全增强

• 将 dm、gaussdb、mssql、oracle 驱动中的 conflictKeySet 从 gset.New修改为 gset.NewStrSet
• 统一使用字符串集合类型以提高类型安全性

3. 配置文件适配器类型安全改进

• 将 jsonMap从 StrAnyMap 类型更改为泛型 KVMap[string, *gjson.Json] 类型
• 添加 jsonMapChecker 函数用于 JSON 对象验证
• 使用 NewKVMapWithChecker 替代 NewStrAnyMap 提高类型安全性
• 简化数据库链接关闭日志中的键值转换逻辑

影响范围

• 数据库连接管理模块
• 多个数据库驱动实现
• 配置文件管理系统

[Copilot]

Pull request overview

This PR refactors the codebase to improve type safety by migrating from untyped containers (gmap.Map, gset.New) to type-safe generic containers (gmap.KVMap[K, V], gset.NewStrSet).

Changes:

• Migrated database connection pool management to use type-safe KVMap[ConfigNode, *sql.DB] instead of raw map[any]any
• Updated database drivers (dm, gaussdb, mssql, oracle) to use gset.NewStrSet for string-only conflict key sets
• Enhanced configuration file adapter to use typed KVMap[string, *gjson.Json] for JSON object storage
• Modified RegisterNilChecker methods across container types to return receiver instances for method chaining support

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
database/gdb/gdb.go	Updated Core struct to use typed KVMap for database links and added linksChecker function
database/gdb/gdb_core.go	Simplified connection closing logic with typed map callback
database/gdb/gdb_core_stats.go	Updated iterator to use typed callback parameters
contrib/drivers/dm/dm_do_insert.go	Changed conflictKeySet from generic gset.New to gset.NewStrSet
contrib/drivers/gaussdb/gaussdb_do_insert.go	Changed conflictKeySet from generic gset.New to gset.NewStrSet
contrib/drivers/mssql/mssql_do_insert.go	Changed conflictKeySet from generic gset.New to gset.NewStrSet
contrib/drivers/oracle/oracle_do_insert.go	Changed conflictKeySet from generic gset.New to gset.NewStrSet
os/gcfg/gcfg_adapter_file.go	Migrated jsonMap to typed KVMap with custom nil checker
container/gmap/gmap_hash_k_v_map.go	Modified RegisterNilChecker to return receiver for method chaining
container/gmap/gmap_list_k_v_map.go	Modified RegisterNilChecker to return receiver for method chaining
container/gset/gset_t_set.go	Modified RegisterNilChecker to return receiver for method chaining
container/gtree/gtree_k_v_avltree.go	Modified RegisterNilChecker to return receiver for method chaining
container/gtree/gtree_k_v_btree.go	Modified RegisterNilChecker to return receiver for method chaining
container/gtree/gtree_k_v_redblacktree.go	Modified RegisterNilChecker to return receiver for method chaining

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[gqcn]

这个PR先hang一段时间，感觉这个泛型版本的NilChecker机制有些繁琐，我看看能否改进。

[LanceAdd]

这个PR先hang一段时间，感觉这个泛型版本的NilChecker机制有些繁琐，我看看能否改进。

emmm其实之前已经改过一批合进去了