Angular Agent Skills

### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Agent Skill (https://platform.claude.com/docs/en/agents-and-tools/agent-skills/overview) is another new way to provide context for LLMs.

### Proposed solution

Is creating Agent Skills planned within Angular organisation or a good candidate for a community open-source project?

Just willing to avoid duplicate efforts before starting one :)

### Alternatives considered

community open-source project

首先阅读链接的 Agent Skills 概览，以及 issue 中关于 Angular 是否应支持或托管 Agent Skills 的讨论。确定 Angular 组织是否有计划中的范围；只有在明确了该所有权和拟议方向后，该 issue 才算完成。

由索引模型根据 Issue 内容生成。