Improved AI grading: detailed prompts, corner crops, high-res images#59
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…images Rewrote all 4 subgrade prompts with full PSA rubric (5-10), perspective correction for tilted listing photos, per-corner/edge defect taxonomy, dark-border awareness, and holo-specific surface guidance. Added sharp-based corner crop preprocessing (8 magnified crops from front+back). Upgraded eBay images to s-l1600. All listing images now passed to centering/edges/surface subgrades. Re-graded demo data with new prompts — more conservative scores and honest confidence values. 98 unit tests (was 92), 214 total.
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Summary
Breaking changes
None. API response shape unchanged — grade objects have same fields, just different values from improved prompts.
Demo data