chore: update license to AGPL-3.0-or-later

[Copilot]

License metadata in package.json and pyproject.toml incorrectly specified GPL-3.0 while LICENSE.md contains AGPL-3.0.

Changes

• package.json: "license": "GPL-3.0-or-later" → "AGPL-3.0-or-later"
• pyproject.toml: license = "GPL-3.0-or-later" → "AGPL-3.0-or-later"

Original prompt

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This section details on the original issue you should resolve

<issue_title>package.json 和 pyproject.toml 中的 license 需要更新至 agpl</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes package.json 和 pyproject.toml 中的 license 需要更新至 agpl #59

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