File › Open, the web build, batch folders and the CLI now pick up
.afdesign, .afphoto and .afpub, which the native reader handles; the MCP
test checks the preview fallback's new warning.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GQPh8UDgMyARR5Hat9UchC
photocraft-affinity now reads native Affinity documents (container
versions 8-12): the FAT and revision chain, stored/zlib/zstd entries
with predictors and CRC checks, the tagged object stream in doc.dat,
and the document model (pages, artboards, layers, groups, curves,
geometric and compound shapes, fills, gradients, strokes, text, placed
images, pixel layers, masks and embedded-document caches). Every size
is bounded and malformed input returns an error.
photocraft-io maps it to an RGB8 document with artboards, groups, shape
layers, type layers, embedded smart objects, pixel layers and
vector/layer masks; what can't be mapped is listed in the warnings. The
embedded preview is now only a fallback when the native data can't be
read, and only that preview is refused by Place and warningless imports.
`cargo xtask corpus --affinity` pins 21 public CC0/MIT documents,
sha256-verified; the io corpus test compares each import with the
thumbnail Affinity saved in it (mean difference 0-4.6 of 255).
Affinity export is not implemented: no Affinity installation was
available to validate written files.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GQPh8UDgMyARR5Hat9UchC
Read the indexed version-12 PNG preview with bounds, chunk ordering and CRC checks. Show native-content and resolution warnings, preserve the source through normal and automation opening, and reject auxiliary routes that cannot display the warning. Add format documentation, malformed-input and save-lifecycle tests, native-oracle hooks and parser/import fuzz targets. Editable native layers and Affinity export remain unsupported.
