Fix trailing spaces in generated captions

[ultmaster]

Summary

• trim children when building captioned paragraphs and adjust trailing space logic
• disable trailing space for empty answers
• update expected outputs for financial analysis and orders QA examples
• fix test expectations for table QA output

Testing

• npm run build-webview
• npm run build-cli
• npm run lint
• npm test
• python -m pytest python/tests

---

https://chatgpt.com/codex/tasks/task_e_6863a3b2cf60832e9b63e9859beaaa67

[Copilot]

Pull Request Overview

This PR trims whitespace-only children when building captioned paragraphs, adjusts trailing space logic for captions, and disables trailing spaces for empty answers in the QA components.

• Import and apply trimChildrenWhiteSpace in CaptionedParagraph to remove extra whitespace
• Pass a boolean captionTailingSpace prop to control trailing space rendering
• Force captionTailingSpace={false} for empty answers in the Question component

Reviewed Changes

Copilot reviewed 2 out of 5 changed files in this pull request and generated no comments.

File	Description
packages/poml/components/utils.tsx	Trim children and conditionally set captionTailingSpace in captions
packages/poml/components/instructions.tsx	Disable trailing space for empty answer captions

Comments suppressed due to low confidence (3)

packages/poml/components/utils.tsx:200

• [nitpick] The prop name captionTailingSpace appears to have a typo; consider renaming it to captionTrailingSpace to match the standard term and improve clarity.

          <Caption captionStyle={captionStyle} captionTailingSpace={hasContent} {...others} />

packages/poml/components/instructions.tsx:543

• [nitpick] The prop name captionTailingSpace appears to have a typo; consider renaming it to captionTrailingSpace here as well for consistency.

          captionTailingSpace={false}

packages/poml/components/utils.tsx:195

• Consider adding unit tests for trimChildrenWhiteSpace to verify that whitespace-only children are removed correctly and that captionTailingSpace toggles as expected.

    const trimmedChildren = trimChildrenWhiteSpace(children, props);