feat: add classification filters for picture description

[drukpa1455]

Summary

• add classification allow/deny/min confidence options for picture descriptions
• skip descriptions when picture classifications do not pass filters

[github-actions]

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[dosubot]

Related Documentation

1 document(s) may need updating based on files changed in this PR:

Docling

• How can you use Docling's REST API to convert a PDF to Markdown and generate image descriptions using an OpenAI model?

^{How did I do? Any feedback?}  

[mergify]

Merge Protections

Your pull request matches the following merge protections and will not be merged until they are valid.

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• title ~= ^(fix|feat|docs|style|refactor|perf|test|build|ci|chore|revert)(?:\(.+\))?(!)?:

[dolfim-ibm]

Annotations are deprecated, please use the new meta container.

[codecov]

Codecov Report

❌ Patch coverage is 89.28571% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
docling/models/picture_description_base_model.py	87.50%	3 Missing ⚠️

📢 Thoughts on this report? Let us know!

[drukpa1455]

thanks for the review. this project has been a big help.

pr updates: use the new meta container (description + classification), type allow/deny with pictureclassificationlabel, and add targeted tests for the filter behavior plus the classifier test update.

[dolfim-ibm]

we recently merged the changes which makes the new meta annotation format usable. Since this created some conflicts with your PR, we took care of resolving those conflicts.

@drukpa1455 for concluding this PR we only need you to sign-off your commits, the rest looks good.