- Enforce status.locked in pan_active_viewport and zoom_active_viewport:
locked viewports now reject pan/zoom inputs entirely
- Add perspective, render_mode, shade_plot_mode, hide_plot, ucs_icon_visible
fields to the viewport property panel with appropriate pickers/toggles
- Add VPORTS command: lists all user viewports in the current layout
(id, size, position, scale, on/locked state) in the command line
- Add VPLAYER command: per-viewport layer freeze/thaw from the command line
(F <layer> to freeze, T <layer> to thaw, Enter to exit)
- Add CmdResult::VpLayerUpdate variant and its handler in apply_cmd_result
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Viewport ID uniqueness: commit_entity assigns max_existing_id+1
instead of always using id=2
- Lock/On boolean toggles in Properties panel (vp_locked, vp_on)
backed by status.locked / status.is_on fields
- Standard scale Choice picker: 1:500 to 10:1 (also syncs view_height)
- Numeric scale edit now syncs view_height when changed
- Standard view Choice picker: Top/Bottom/Front/Back/Left/Right/4×Iso
updates view_direction vector via apply_geom_prop
- Viewport content not rendered when status.is_on is false
- current_layout_block_handle_pub() added for external access
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
