The drag ghost was anchored (centerIn) — Qt won't move an anchored
drag.target, so no DropArea ever fired and stack creation died silently;
position it on press instead. Drag lifecycle now sets dockDragInProgress
(the DockManifest guard finally has a writer). Restored pulseDockReveal,
lost in a refactor while its osk.pulseDock caller survived.
Rail lifts atop squeekboard by measured layer height (hyprctl -j layers,
namespace osk); swipe down dismisses the keyboard first, then a visible
dock in any state (new dockSuppressed, cleared by swipe up). Overview:
taps in the grid's dead space dismiss it instead of being eaten.
DockConfig grew the real pins/stacks editor (unpin, rename, unstack,
dissolve).
