New feature : style-based uncertainty bar visualization for components (DSL and WYSIWYG)

[formicoidea]

Goal

It is usefull to mark a level of confidence on the evaluation of the evolution level. On one hand, this helps to mark a reminder where we have to deep research to lower the position uncertainty. On the other hand, this is usefull to communicate about component position uncertainty in the evolution.

The uncertainty feature create an error bar like on a component to indicate uncertainty.

Main changes

• Style-specific uncertainty rendering:
  • Wardley: centered line with vertical end caps.
  • Other styles: gradient band.
• Gradient intensity is anchored to the component position (maximum intensity at the
  component).
• Uncertainty model extended with component-relative bounds (offsets), while
  keeping absolute-bound compatibility.
• WYSIWYG selection/editing of uncertainty area (visual highlight + draggable
  handles).
• Extended mixed DSL parsing:
  • uncertainty [,x], [x,], [,+d], [-d,]
  • uncertainty right +d, uncertainty left -d
• Updated editor syntax highlighting rules (mode-owm) for the mixed syntax.
• Updated converter, visual rendering, and editor tests.

Validation

• Frontend build: ✅
• Frontend tests: ⚠️ 1 known failing golden master (GivenMapElementsGoldenMaster) to
  align/regenerate.