f71712ab4b
Annotation threads now open in a slide-in side panel (320 px, right edge of the PDF viewer) instead of expanding the bottom drawer. The PDF stays visible while the user reads and writes annotation comments. - Add AnnotationSidePanel component (absolute-positioned, CSS slide transition, keyed CommentThread, close via X or Escape) - Remove the $effect that opened the bottom drawer on annotation click - Simplify PanelDiscussion back to document-level thread only (no annotation sub-tabs) - Remove annotation-related props from DocumentBottomPanel and PanelDiscussion Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>