feat(solid): add SolidJS adapter with SSR and hydration support

[KholiqAmrulloh]

Summary

Adds an official SolidJS adapter for UI Grid, built on top of the existing
@ornery/ui-grid-vanilla custom element.

The adapter preserves SolidJS ownership and reactivity while sharing the same
framework-neutral grid engine used by the Angular and React integrations.

What changed

• Added the new @ornery/ui-grid-solid package
• Added reactive GridOptions updates without resetting interactive grid state
• Added SolidJS JSX renderers for:
  • cells
  • column headers
  • expandable detail rows
  • cell editors
• Added SSR and hydration support
• Added cleanup for projected roots, subscriptions, and component lifecycle
• Added a SolidStart example
• Added a standalone SolidJS demo with 100,000 rows
• Added build, test, and development scripts
• Added dedicated SolidJS CI and publishing workflows
• Updated version synchronization for the new package
• Updated the main README with installation, usage, compatibility, and
  documentation links

Design

The adapter mounts the existing <ui-grid-element> Web Component and projects
SolidJS-owned JSX content through the grid's slot-based rendering system.

Options are updated on the existing element when SolidJS signals change. This
preserves interactive state such as sorting, filtering, column order, selection,
and column widths.

Validation

• npm run build:solid
• npm run test:solid
• SSR rendering
• Client-side hydration
• Package consumption test
• SolidJS demo