edit Directory Reference

Directory dependency graph for edit:

Files
	mainwindow_edit_edge.cpp
	Implements MainWindow Edit menu edge operations: add/remove, properties, appearance, symmetrize/dichotomize/undirect transforms.
	mainwindow_edit_filters.cpp
	Implements MainWindow node/edge filtering (isolates, weight, ego network, attribute, query builder) and the nodes-to-edges transform.
	mainwindow_edit_node.cpp
	Implements MainWindow Edit menu node operations: add/remove, properties, appearance, selection, subgraph-to-shape transforms.
	mainwindow_edit_relation.cpp
	Implements MainWindow relation management (add/rename/clear/switch) and the directed-graph toggle.
	mainwindow_edit_selection.cpp
	Implements MainWindow canvas selection/drag-mode handling, the generic context menu, subgraph extraction, and the Data Table view.
	mainwindow_edit_shared.cpp
	Implements small MainWindow Edit-menu-adjacent helpers: saving a subgraph selection to file, and active node/edge counts.