Within the Diskussion panel tab, show two sub-tabs when an annotation is
active: «Diskussion» (document-level thread, with comment-count badge) and
«Annotation · Seite N» (annotation-specific thread).
Behaviour:
- Clicking an annotation auto-switches to the Annotation sub-tab
- Clicking the Diskussion sub-tab deselects the annotation and returns to
the document thread
- Escape clears the active annotation (or collapses the panel if none)
- activeAnnotationPage is now lifted from PdfViewer → DocumentViewer →
page → DocumentBottomPanel → PanelDiscussion so the tab label shows the
correct page number
Closes#60
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replaces the left sidebar layout with:
- Full-viewport PDF/image viewer (never resizes, position: absolute)
- Fixed floating bottom panel with tabs: Metadaten, Transkription,
Diskussion, Verlauf
- Compact top bar with title, date · sender → receivers row, and
Annotieren / Edit / Download actions
- Drag-to-resize panel with localStorage persistence of open/height/tab
- Panel opens automatically to Diskussion when an annotation is clicked
- Documents without a file default to showing the Metadaten tab
New components: DocumentTopBar, DocumentViewer, DocumentBottomPanel,
PanelMetadata, PanelTranscription, PanelDiscussion, PanelHistory
PdfViewer: annotateMode and activeAnnotationId lifted to bindable props;
AnnotationCommentPanel removed (discussion moves to the Diskussion tab).
Closes#62
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>