v0.8.0

Added

• Tooltip — new component (content, children, placement, delay, offset,
  disabled, open). Positions relative to its trigger with automatic edge-flip, and supports an
  open prop for external/controlled visibility (used by GraphCanvas's node/edge tooltip
  overlays, whose hover state lives on the node or edge rather than on whatever wraps the
  tooltip) — when set, the trigger's own pointer/focus tracking and delay are bypassed.
• GraphCanvas — nodeTooltip and edgeTooltip render-prop options to show a Tooltip over
  a hovered node or edge.
• GraphCanvas — onEdgeHover event, mirroring the existing onNodeHover.
• GraphCanvas — renderEdge render-prop (paired with the new exported EdgeGeometry type
  and GraphEdgeShape component) for fully custom edge rendering, mirroring the existing
  renderNode.
• useMediaQuery — new hook: subscribes to a media query string and returns whether it
  currently matches, updating on change. SSR-safe (returns false until mounted).
• ShellLayout — mobileBreakpoint prop (default 768, matching Topbar/Statusbar; pass
  false to disable): below the breakpoint the sidebar collapses into a slide-over overlay opened
  via a mobile menu toggle instead of the persistent rail.
• Drawer — keepMounted prop: keeps the drawer in the DOM (hidden) while closed instead of
  unmounting it, for consumers that need to preserve its internal state across opens.

Fixed

• Tooltip — pointer moving from the trigger onto the tooltip's own content no longer hides
  it immediately; hover now persists across that boundary as intended.