Add NacosSkillRepository

[qiacheng7]

提供 NacosSkillRepository，实现 AgentSkillRepository，从 Nacos 读取 Skill（只读）

[cla-assistant]

All committers have signed the CLA.

[cla-assistant]

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[codecov]

Codecov Report

❌ Patch coverage is 95.08197% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ntscope/core/nacos/skill/NacosSkillRepository.java	93.02%	2 Missing and 1 partial ⚠️

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[shiyiyue1102]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.You have signed the CLA already but the status is still pending? Let us recheck it.

sign CLA pls.

[Copilot]

Pull request overview

This PR adds a new Nacos-backed AgentSkillRepository implementation so AgentScope can read Skills from Nacos (read-only), and wires the new module into the build/distribution BOMs.

Changes:

• Add new agentscope-extensions-nacos-skill module implementing NacosSkillRepository and a Skill→AgentSkill converter.
• Register the new module in the Nacos extensions parent POM and include it in the BOM and agentscope-all distribution.
• Update the managed nacos-client version in the dependencies BOM.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
agentscope-extensions/agentscope-extensions-nacos/pom.xml	Adds the new agentscope-extensions-nacos-skill module to the reactor build.
agentscope-extensions/agentscope-extensions-nacos/agentscope-extensions-nacos-skill/src/main/java/io/agentscope/core/nacos/skill/NacosSkillToAgentSkillConverter.java	Introduces conversion logic from Nacos AI Skill model to AgentSkill.
agentscope-extensions/agentscope-extensions-nacos/agentscope-extensions-nacos-skill/src/main/java/io/agentscope/core/nacos/skill/NacosSkillRepository.java	Adds the Nacos-based repository implementation for loading skills.
agentscope-extensions/agentscope-extensions-nacos/agentscope-extensions-nacos-skill/pom.xml	Declares the new skill module artifact and dependencies.
agentscope-distribution/agentscope-bom/pom.xml	Adds the new artifact to the AgentScope BOM.
agentscope-distribution/agentscope-all/pom.xml	Includes the new module as an optional dependency in the “all” distribution.
agentscope-dependencies-bom/pom.xml	Bumps the managed nacos-client version used across the repo.

[chickenlj]

LGTM.