Summary by CodeRabbit

• 新功能
  • 集群权限管理界面新增“限制命名空间”字段，可为集群管理员、只读和Exec权限用户设置命名空间限制，并支持动态选择和更新。
• 改进
  • 集群管理员执行命令（Exec）时，权限校验更细化，需具备对应命名空间权限。
  • 集群只读和管理员角色均可访问读操作，权限提示信息同步更新。
  • 授权相关页面文案优化，明确各角色权限范围与操作指引，提升信息清晰度和一致性。
• 样式/文案
  • 多处按钮、提示和页面标题文案调整，使授权流程和权限说明更易理解。

Walkthrough

本次变更对集群权限管理进行了细化：后端在“exec”操作时对集群管理员增加了命名空间级别的校验，前端则在多个页面引入了命名空间限制的可视化配置，并优化了授权相关的提示文案，提升了权限管理的透明度和可操作性。

Changes

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant API
    participant PermissionChecker

    User->>API: 请求执行 exec 操作（含命名空间）
    API->>PermissionChecker: 校验用户权限（角色、命名空间）
    alt 用户为 cluster admin
        PermissionChecker->>PermissionChecker: 校验命名空间权限
        alt 通过
            PermissionChecker-->>API: 允许操作
        else 未通过
            PermissionChecker-->>API: 拒绝操作
        end
    else 用户为 cluster readonly + exec
        PermissionChecker->>PermissionChecker: 校验命名空间权限
        alt 通过
            PermissionChecker-->>API: 允许操作
        else 未通过
            PermissionChecker-->>API: 拒绝操作
        end
    else
        PermissionChecker-->>API: 拒绝操作
    end
    API-->>User: 返回操作结果

Possibly related PRs

• 迁移StreamExec 到kom中 #130：同样修改了 pkg/cb/cb.go 的 handleCommonLogic 权限校验，关注点为集群管理员 exec 权限但实现逻辑不同，直接相关。
• refactor(ui): 移除集群管理页面中的命名空间选择功能 #159：本 PR 增加了 UI 层的命名空间限制管理，而 refactor(ui): 移除集群管理页面中的命名空间选择功能 #159 则移除了这些 UI 功能，两者在同一配置文件中对立且直接相关。

Poem

🐇
权限细分更精妙，
管理员亦查命名空间。
前端弹窗随手点，
授权名单一目全。
兔子跳跃喜更新，
安全透明乐无边！

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