feat(inpaint): mirror lquesada API + add Wan 2.2 Animate-aware extras

- InpaintCropProMEC: full lquesada InpaintCropImproved input set
  (downscale/upscale algo, preresize, mask preprocessing pipeline,
  extend_for_outpainting, context_from_mask_extend_factor,
  output_resize_to_target_size, device_mode)
- InpaintStitchProMEC: 2-input stitcher (stitcher + inpainted_image)
  with simple m*inp+(1-m)*canvas alpha composite (lquesada-compatible)
- Wan 2.2 Animate extras (arXiv:2509.14055):
  * wan_align_multiple (VAE patchify alignment, default 16)
  * wan_temporal_smooth_frames (mask coherence along time)
  * wan_stable_crop (single union bbox across frames)
  * wan_mask_polarity (regenerate_subject vs preserve_subject)
- Multi-algorithm resize helpers (nearest/bilinear/bicubic/area in torch,
  lanczos/box/hamming via cv2 fallback)
- Edge-replicate canvas extension for outpainting
- New STITCHER dict schema replaces STITCH_DATA

Author: Code2Collapse