Pre-resize images to exact model dimensions, implement feathered blending to eliminate seam artifacts, cache model constraints to unify coordinate space

intermediate seam fix algorithm

Update CoreML model weights and manifest identifiers, add panorama to 3D Gaussian splat conversion CLI tool, implement horizontal seam blending to fix depth artifacts, update license to Apache-2.0 and document workflow, add demonstration GIF and regenerate test outputs

docs

Add DepthAnyPanorama CoreML model, export scripts, and test outputs