fix(openai/0.x): handle OpenRouter image generation responses #8880
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- Add support for OpenRouter's image generation API response format - Extract images from OpenRouter's `choices[0].message.images` array - Convert images to LangChain's Multimodal.Image content blocks - Add unit tests for single image, multiple images, and text-only responses - Use proper TypeScript types for content blocks OpenRouter returns generated images in a separate `images` array rather than within the message content. This fix ensures these images are properly extracted and converted to LangChain's standard multimodal message format. Fixes: #8791
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christian-bromann
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everything but the standard type change should be relevant for this PR also:
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Updated PR in the same way as #8879 |
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backported from #8879