feat(samples): langchain

[blove]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/liveloveapp/hashbrown/blob/main/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Documentation has been added / updated (for bug fixes / features)

PR Type

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[x] Other... Please describe:

What is the new behavior?

Creates new langchain sample apps

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: f1843c3589

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[chatgpt-codex-connector]

Import Textarea with correct case

This import uses ./Textarea, but the file on disk is textarea.tsx (lowercase). On case-sensitive filesystems (Linux CI, most prod builds), the module resolution will fail and the sample won't compile. Consider reverting to ./textarea or renaming the file to match.

Useful? React with 👍 / 👎.

[chatgpt-codex-connector]

Import Textarea with correct case

Same case-sensitivity issue here: ./Textarea does not match the actual textarea.tsx filename, so builds on Linux will error with “Cannot find module”. Align the import with the filename or rename the file.

Useful? React with 👍 / 👎.