0.2.0

Breaking API changes; consumers must be rebuilt. Workspace files stay compatible in both
directions — the new fields are additive, so older builds still open newer workspaces.

Added

• Canvas profile change tracking — each page records the profile it was rendered with
  (canvasRenderFingerprint()), so a later edit to that profile is detectable
• ProjectItem::detectCanvasConfigChange() — reports which pages a profile edit
  invalidated, or that the profile list itself changed
• ProjectItem::effectiveCanvasProfileIds() — the profiles a project actually renders
  with, mirroring CanvasProfileMatcher's rule
• ProcessingOutcome::appliedProfiles — which canvas profile the pipeline applied to
  each input

Changed

• Breaking — ProjectItem::sanitize() now takes the workspace canvas profiles, and
  flags config-stale files as Desynchronized alongside the existing on-disk checks
• Breaking — ProjectItem::applyProcessingResults() takes the applied profiles and the
  workspace profile list, so the canvas baseline is recorded with the render
• Breaking — ScaledStrip::sliceAll() streams each slice to a callback instead of
  returning them all; non-const and single-use
• Breaking — Slicer removed — it wrapped two ints and forwarded to ScaledStrip,
  which ProcessingPipeline already drove directly

Fixed

• ScaledStrip memory contract — sources are released as slicing advances, as the class
  always documented but never did. Peak memory is now flat instead of growing with page
  count (24-page chapter: 534 MB → 213 MB). Output is byte-for-byte identical
• Canvas profile edits were ignored — changing margins or canvas size left a project
  reporting itself up to date while its rendered output no longer matched
• Windows CLI hang on exit — an intermittent deadlock in the loader's DLL teardown
  (LdrShutdownProcess), reproducible under both MinGW and MSVC. The CLI now flushes its
  output and terminates instead of unwinding the dependency graph