* mtmd: deepseek-ocr v1 multi-tile dynamic resolution + unified image-preprocessors for both versions (ds-ocr v1 and v2)
* remove hacky API
* fuse row into a long image
* almost working
* adapt to new preprocessor api
* rm debugging printf
* improve
* mtmd: dsocr-tiles fixes (#25481)
* ds-ocr img-preproc fuse_row tile-drop fix for multi rows and columns images
* mtmd drop the duplicate redundant img_end
* deepseekocr graph simplify CLS broadcast cleanup
* test-deepseek-ocr: relax v1 single-view tolerance; drop trailing prompt space; make DRY opt-in and n_predict model-specific (#25486)
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Co-authored-by: Saba Fallah <10401143+sfallah@users.noreply.github.com>
Co-authored-by: Saba Fallah <sabafallah@gmail.com>