Add multi-click text selection, pending caret formatting and clipboard support, text-aware colour controls, guide/grid snapping, and frame threading with loaded-port interactions.
Include the layout, drop-cap and IDML updates carried from #83, with safeguards for generated and linked stories, external text references, local IDs, locked frames and atomic colour edits.
Fixes#23.
Co-authored-by: Sean Hammond <[email protected]>
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Prepare and stage every chapter before a book update writes files. Preserve imported IDML sources, reject open native chapters and report completed paths after a later write failure.
Follow-up to #485.
PR #615.
Progress docs per craftrules standards/progress-docs.md: target-app parity, gaps, roadmap with alpha gate, readiness by audience (full / mainstream / essentials) with Opus 5.5 hours, and feature, format, hardware, UI and localization parity docs.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
