Implemented VisualDiceRoller Blazor component in companion package

• Added the d20Tek.DiceNotation.Blazor package with the VisualDiceRoller component, which animates a completed DiceResult in a two-dimensional tray drawn on an HTML canvas. The component never rolls dice, so the faces that come to rest always match the result the application already calculated.
• Added AddDiceNotationBlazor(), which registers the component's services along with the core dice notation services, so a consuming application only makes one call.
• Added DiceRollerOptions and the DiceRollerOptionsBuilder fluent registration API for configuring the tray size, theme, presentation values, physics settings, and reduced-motion preference.
• Added the DiceTheme presets Default, DarkFantasy, and Parchment, along with DiceVisualSettings and DiceSimulationSettings for tuning appearance and physics.
• Added DiceRollSummary and VisualDie result models, which preserve the authoritative total from the notation library along with each die's role, sides, and minimum face value.
• Added a reduced-motion option and an accessible canvas label so the settled outcome is available to assistive technology.
• Added shape-aware dice rendering: each die is now drawn and simulated with a silhouette matching its type (d2 round coin, d4 triangle, d6 square, d8 diamond, d10 and d100 kite, d12 pentagon, d20 hexagon) instead of every die appearing as a square. Shapes are resolved in C# and sent to the renderer as vertex data, and the physics bodies are built from the same outlines so collision always matches what is drawn.
• Added full documentation for the Blazor package: docs/introduction-blazor.md, docs/getting-started-blazor.md, and docs/api-reference-blazor.md, including supported targets and known limitations.
• Published the Blazor component library as the d20tek-dicenotation-blazor NuGet package (version 1.0.0) targeting .NET 9 and .NET 10, with symbol packages and a package README.
• Added the BlazorDice sample application, which demonstrates the main scenarios on its home page: keep-highest rolls, single-die rolls with modifiers, mixed die types, coin flips, percentile dice, theme switching, reduced motion, replay, and invalid-notation error handling.
• Fixed an ambiguity in the VisualDiceRoller rendering where a 6 and a 9 looked identical on tumbling dice. Dice with nine or more sides now draw a disambiguating dot after those numerals, matching the convention used on physical dice.