* feat: add PDF input support to AI agent with user_attachments field
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* test: add integration tests for PDF input and backward compat
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: add ContentPart::File variant for PDF support across all providers
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* refactor: address review feedback on PDF support
- Extract parse_data_url_bytes and mime_to_document_format helpers in Bedrock
- Add is_document_mime helper in ai_types for centralized MIME routing
- Extract s3_object_to_content_part helper to deduplicate image_handler/openai
- Rename AnthropicImageSource to AnthropicBase64Source
- Derive Bedrock DocumentFormat from MIME type instead of hardcoding Pdf
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: merge user message and attachments into single message for Bedrock
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
