v0.2.0

Added

• Per-page OCR results now appear in the GUI as each page finishes, instead of
  only after the whole run completes.
• Page edits (delete, rotate, crop, split, append, reorder) run in the
  background with a busy indicator, so the window stays responsive on large
  documents. Run/OCR, Save, and page operations are disabled while an edit runs.

Fixed

• OCR no longer crashes the app on large multi-page runs. A single Google Drive
  HTTP client was shared across the engine's concurrent workers; since httplib2
  is not thread-safe this corrupted its state and faulted the process (Windows
  heap corruption). Each worker now gets its own client.
• OCR returned empty text (or failed to upload with HTTP 413) for PDFs with very
  large pages. Pages now render as resolution-capped JPEGs that stay within
  Google Drive's upload and OCR limits.
• lexo info and --version now report the actual package version (the
  reported value had drifted from the published version).

Changed

• Hash a PDF once per OCR run instead of once per render batch (much faster on
  large files).
• Skip rebuilding the whole thumbnail strip when an OCR run finishes; per-page
  status badges already update live.