fix from modified date to timestamp

[aninibread]

Summary

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Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

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PR Change Summary

Updated documentation to replace references from 'modified_date' to 'timestamp' for consistency and clarity in metadata filtering.

• Replaced 'modified_date' with 'timestamp' in AutoRAG search results documentation.
• Updated metadata filtering examples to reflect the change from 'modified_date' to 'timestamp'.
• Clarified the usage of 'timestamp' in comparison filters.

Modified Files

• src/content/changelog/autorag/2025-04-23-autorag-metadata-filtering.mdx
• src/content/docs/autorag/configuration/metadata-filtering.mdx

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[github-actions]

Preview URL: https://ab181876.preview.developers.cloudflare.com
Preview Branch URL: https://anni-autorag-date-filter.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/autorag/configuration/metadata-filtering/	https://anni-autorag-date-filter.preview.developers.cloudflare.com/autorag/configuration/metadata-filtering/
https://developers.cloudflare.com/changelog/2025-04-23-autorag-metadata-filtering/	https://anni-autorag-date-filter.preview.developers.cloudflare.com/changelog/2025-04-23-autorag-metadata-filtering/