Add D-prefixed Blazor wrappers for every daisyUI 5 component

Components/Daisy/ wraps all 69 components in daisyUI's llms.txt, grouped by
daisyUI's categories (Actions, DataDisplay, Navigation, Feedback, DataInput,
Layout, Mockup), with part components where daisyUI has repeating parts (DTab,
DMenuItem, DTimelineItem, ...).
- Each enum maps to whole literal class names in a switch, so Tailwind's scanner
  generates them. Nothing is concatenated.
- Value-holding fields derive from DInputBase<TValue>, Blazor's InputBase, so
  @bind-Value and EditForm validation work. Invalid fields get the component's
  *-error class.
- Open and active state lives in C# (@bind-IsOpen, @bind-Active) and is rendered
  with daisyUI's *-open modifiers. DDropdown adds an outside-click layer and
  Escape. No component uses JS interop.
- The one exception is DCalendar, which wraps the Cally web component, vendored
  as wwwroot/vendor/cally.js (0.9.2, MIT).

/styleguide (not linked) renders every component in all its colours, sizes and
states, with a theme and hue picker that previews without saving.

neo.css follows what the styleguide showed:
- select keeps daisyUI's arrow;
- skeleton-text isn't sunk;
- the phone mockup and dock are raised;
- active menu items and OTP digits are inset;
- a joined accordion is raised as one block.
The primary, secondary and accent colours are deeper, so they still read as
text.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

Components/Daisy/Navigation/DMegamenuItem.razor

@@ -0,0 +1,30 @@
+@inherits DComponentBase
+
+@* One item of a DMegamenu: its button and the popover it opens, rendered as siblings because daisyUI pairs them by
+   position (nth-of-type) among the megamenu's direct children. class and other attributes go on the popover. *@
+<button type="button" class="@Cx(HideArrow ? "after:content-none" : null, ButtonClass)" popovertarget="@uid">
+	@if (Header is null)
+	{
+		@Text
+	}
+	else
+	{
+		@Header
+	}
+</button>
+<div @attributes="AdditionalAttributes" id="@uid" popover class="@Cx("text-inherit", Class)">
+	@ChildContent
+</div>
+
+@code {
+	/// <summary>The button's text; Header replaces it with markup.</summary>
+	[Parameter] public string Text { get; set; }
+	[Parameter] public RenderFragment Header { get; set; }
+	/// <summary>The popover's content: a DMenu or anything else.</summary>
+	[Parameter] public RenderFragment ChildContent { get; set; }
+	/// <summary>Drop the arrow daisyUI draws after the button's text (after:content-none).</summary>
+	[Parameter] public bool HideArrow { get; set; }
+	[Parameter] public string ButtonClass { get; set; }
+
+	readonly string uid = "d" + Guid.NewGuid().ToString("N")[..8];
+}