chore: bump version to 4.26.0-beta.12

[Soulter]

Summary

• Bump AstrBot to 4.26.0-beta.12
• Add changelog for changes since v4.26.0-beta.11

Validation

• uv run ruff format --check .
• uv run ruff check .

Summary by Sourcery

Bump AstrBot project version to 4.26.0-beta.12 and document the changes included in this beta release.

Bug Fixes:

• Document fixes for provider source ID persistence, unwanted data directory creation, and inclusion of dashboard artifacts in sdist builds.

Build:

• Update project version metadata to 4.26.0-beta.12 in packaging configuration.

Documentation:

• Add changelog entry describing changes for version 4.26.0-beta.12.

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Project	Deployment	Actions	Updated (UTC)
astr-bot	Ready	Preview, Comment	Jun 21, 2026 6:11am

[gemini-code-assist]

Code Review

This pull request bumps the version of AstrBot to 4.26.0-beta.12 and adds a changelog file detailing recent bug fixes. The reviewer suggested removing the placeholder comment in the changelog before publishing.

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[gemini-code-assist]

The placeholder comment <!-- Review, group, and polish these entries before publishing. --> should be removed before publishing the changelog.

[sourcery-ai]

Hey - I've found 1 issue

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location path="changelogs/v4.26.0-beta.12.md" line_range="6" />
<code_context>
+<!-- Review, group, and polish these entries before publishing. -->
+
+- fix: 修复提供商源修改 ID 后保存被静默还原的问题 (#8915) (42ca89d6c)
+- fix: created unnecessary data dir when executing astrbot command (#8932) (39d425316)
+- fix: add sdist build artifact path to allow dashboard artifact to be included (#8933) (05148dfdd)
</code_context>
<issue_to_address>
**suggestion (typo):** Consider rephrasing the second bullet for clearer grammar.

This wording reads as though the fix created the directory. To avoid ambiguity and match typical changelog style, consider something like: "fix: unnecessary data directory created when executing astrbot command" or "fix: creating unnecessary data directory when executing astrbot command."

```suggestion
- fix: unnecessary data directory created when executing astrbot command (#8932) (39d425316)
```
</issue_to_address>

---

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[sourcery-ai]

suggestion (typo): Consider rephrasing the second bullet for clearer grammar.

This wording reads as though the fix created the directory. To avoid ambiguity and match typical changelog style, consider something like: "fix: unnecessary data directory created when executing astrbot command" or "fix: creating unnecessary data directory when executing astrbot command."

Suggested change

	- fix: created unnecessary data dir when executing astrbot command (#8932) (39d425316)
	- fix: unnecessary data directory created when executing astrbot command (#8932) (39d425316)