0.3.1

Added

• ProjectEditor and WorkspaceEditor now expose component snapshot/restore for undo/redo (or any
  save-and-revert-a-single-part need), so a consumer never has to serialise or parse workspace JSON
  itself — the editors, already the validated-mutation authorities, own it:

  • ProjectEditor::snapshot() / restore(str) — a compact serialisation of one project (inputs,
    outputs, profile links, output-profile selection, output dir, render baselines). restore reinstalls
    the content in place, rebuilds the lookup tables, and applies the private profile-link fields through
    the friend path; the project name is preserved (it belongs to the workspace scope).
  • WorkspaceEditor::snapshotMeta() / restoreMeta(str) — workspace-level metadata only: the canvas
    and output palettes plus the project (uid, name) roster, without project contents. restoreMeta
    reinstalls the palettes through the validated setters (ids preserved, presets stripped, templateInfo
    restored exactly) and restores project names by uid, leaving inputs/outputs untouched.

  The two are scoped so a workspace-level restore can never resurrect project content reverted on a
  project's own timeline. (Internally, the Models JSON codec moved from workspace_serializer.cpp to a
  shared model_json unit both the serializer and the editors use; WorkspaceSerializer's public API
  is unchanged.)

• Five new platform output presets. Alongside "Webtoon Standard", the catalogue now ships presets
  for Tapas, NAMICOMI, GlobalComix, Popjoy and ComicFury/indie-web. Design rule: a preset must always
  produce an uploadable file for its platform — slice heights are kept conservative (≈1.4–3.3 MP) and
  compressed formats preferred; users who want to push size/quality do it in a custom profile.

  • Tapas — 940 × 1504, JPEG. 940px width is required, with a 2 MB per-file limit; the height
    keeps Webtoon's 1:1.6 ratio (940 × 1.6 = 1504) and a q90 JPEG stays well under 2 MB.
  • NAMICOMI — 1200 × 1600, PNG. The platform allows a 250 MB per-chapter budget, so lossless
    is free and its creators prefer it — the one non-lossy preset.
  • GlobalComix (HD) — 1280 × 2560, WebP. The platform promotes HD and fully supports WebP,
    which keeps a tall HD slice uploadable (smaller than the equivalent JPEG).
  • Popjoy — 1000 × 2000, JPEG. Targets high-DPI phone screens; 2 MP q90 stays well under a
    typical per-file limit.
  • ComicFury / Indie — 950 × 1500, JPEG. A layout-safe width for classic web CMS templates.

  All resolve from the compile-time catalogue like "Webtoon Standard" (stable ids op-preset-tapas,
  op-preset-namicomi, op-preset-globalcomix, op-preset-popjoy, op-preset-comicfury; never
  persisted); consumers that list outputProfilePresets() — the CLI and the GUI — pick them up
  automatically.

Packaging

• The MinGW build no longer depends on MSYS2's libvips (or on an MSVC build). Both Windows
  toolchains now fetch the same pinned prebuilt "web" libvips via FetchContent (each into its own
  build tree, so the branches are independent). MinGW previously used MSYS2's mingw-w64-x86_64-libvips
  through pkg-config — the full build (~92 DLLs / ~34 MB, plus vips-modules "unable to load …"
  warnings). The slim web build cuts the bundled third-party DLLs to ~40 (~25 MB with the MinGW
  runtime) and drops the module warnings. MinGW links the C libvips only (the web zip's C++
  runtime is LLVM libc++, ABI-incompatible with libstdc++, but Platemaker uses only the vips C API,
  whose ABI is stable across runtimes) — linking directly against the DLL, so no .lib/.def/dlltool
  step is needed. Building on MinGW now requires only the MSYS2 toolchain (gcc, ninja); no
  mingw-w64-x86_64-libvips package and no PKG_CONFIG_PATH.

Full Changelog: 0.3.0...0.3.1