3310a3a43e
- canvas: add missing getters/setters (get_buf, get_image, get_px, get_draw_buf, set_palette, copy_buf, init_layer, finish_layer, buf_size) - draw_buf: export create/destroy/init/dup/copy/goto/width_to_stride/align/palette/from_image/to_image - draw layer: create + alloc_buf - image: scale/rotation/pivot/offset for GB integer upscaling - style: transform_scale/pivot for fallback path Enables ELF apps to use full LVGL9 canvas docs API: - 160x144 raw buffer + lv_image_set_scale 2x/3x - layer init/finish for direct draw calls - palette for indexed GB modes Test: GameBoy app builds clean (0 missing symbols) vs 5.5.2 SDK Fixes missing symbol errors that previously required commented-out scaling workaround