1.3.0

Inline handwriting blocks are finally editable — from a full-size editor,
on desktop and iPad.

Fixed

• ```inkedmark blocks were rendered read-only and nothing in the plugin
  could put ink into them, so Insert inline handwriting produced a block
  you could never draw in (#18).

Added

• Inline block editor. Every ```inkedmark block shows an open icon in
  its corner (the same arrows as ![[…]] embeds; reading mode and Live
  Preview). It opens the block in a modal with the same toolbar as an ink
  note — full-screen on iPad — and writes the strokes back into the block
  when you close it (Done, ✕ or Esc; Discard changes drops them).
  Insert inline handwriting now opens the editor right after inserting
  the block.
• Caption as the block's text layer. Edit it in the editor's text panel or
  fill it with Recognize handwriting (transcription collapsed to one
  line). With Recognize automatically on, that happens when you close the
  editor after drawing — no idle timer inside the editor.
• Safety rules for the write-back: only the block's caption: and payload
  lines are rewritten; if the block can't be located unambiguously in the
  note the save is refused with a notice; a block whose payload can't be
  decoded shows no edit icon and is never overwritten.

Changed

• The drawing engine (canvases, pen/highlighter/eraser/select, zoom,
  undo/redo) is now one component shared by the ink-note view and the inline
  editor. Ink-note behavior is unchanged.