v1.2.0

Documentation gallery rebuild + library hardening (v1.2.0)

Rebuilds the examples gallery from scratch — 34 interactive cards across 8 phases
(styling, layouts, events, editing/notes, filtering, theming, and scale up to
~1,500 nodes) — and fixes/extends the library features those cards exercised.

New

• Gallery — 34 live, copy-pasteable cards demonstrating every major feature in the doc.
• Image nodes — imageFit modes (icon / cover / contain / frame), click-to-reveal
  full picture, and a graceful fallback glyph for broken images.
• Font-agnostic icons — resolve node icons across Font Awesome + misp-iconify.
• Seedable & pinnable layouts — preserve initial node x/y and honour caller fx/fy.
• Gravity tiers — configurable d3GravityStrengthConnected floor.

Changes

• Version bumped to 1.2.0.
• Replaced tom-select with the in-house PivotickPicker.
• Simulation worker hardened: serialization-safe DTOs, compute-time slow-tick
  detection, and main-thread fallback when the worker is blocked.
• Sass modernized (@use over @import); lint + dataset cleanups.

Fixes

• Simulation / clustering — positions written back by node id; external edges
  re-anchored to expanded clusters; cross-cluster edges re-targeted through collapse
  states; charge damping clamped (no more NaN); fit-and-center after the layout settles.
• Rendering — measured renderNode size feeds the collision radius; visibility
  observer guarded against an unset selection.
• Filtering / query — null/undefined facet values dropped (crash); programmatic
  setFilter reflected in the panel; excludeNode/includeNode act on the live node;
  integer attributes added to the numbers set.
• Edges / tooltip — per-edge style preserved across updateStyle; themed label
  colours; tooltip honours its own header/properties maps.