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/DMegamenu.razor

@@ -0,0 +1,55 @@
+@inherits DComponentBase
+
+@* daisyUI Megamenu: https://daisyui.com/components/megamenu/ . Built on the native popover API, as daisyUI specifies:
+   each DMegamenuItem renders a button and the popover it opens (per-instance ids), so opening, light dismiss and
+   Escape are the browser's. The root is a popover too: with Responsive it turns, below sm, into a vertical menu that
+   the toggle button opens. daisyUI supports at most 10 items. text-inherit undoes the browser's popover CanvasText
+   colour, which daisyUI resets for dropdowns but not here. *@
+@if (Responsive || Direction == DDirection.Vertical)
+{
+	<button type="button" class="@Cx("btn", Direction == DDirection.Vertical ? null : "sm:hidden", ToggleClass)" popovertarget="@uid">
+		@ToggleText
+	</button>
+}
+<div @attributes="AdditionalAttributes" id="@uid" popover class="@CssClass">
+	<span class="megamenu-active"></span>
+	@ChildContent
+</div>
+
+@code {
+	/// <summary>The DMegamenuItem children.</summary>
+	[Parameter] public RenderFragment ChildContent { get; set; }
+	[Parameter] public DMegamenuPanelWidth PanelWidth { get; set; }
+	[Parameter] public DSize Size { get; set; }
+	/// <summary>
+	/// Vertical (megamenu-vertical) hides the menu until the toggle button opens it, at every width. With Horizontal
+	/// that happens only below sm when Responsive is set.
+	/// </summary>
+	[Parameter] public DDirection Direction { get; set; }
+	/// <summary>Below sm, hide the menu and show the toggle button that opens it vertically (max-sm:megamenu-vertical).</summary>
+	[Parameter] public bool Responsive { get; set; } = true;
+	[Parameter] public string ToggleText { get; set; } = "Menu";
+	[Parameter] public string ToggleClass { get; set; }
+
+	readonly string uid = "d" + Guid.NewGuid().ToString("N")[..8];
+
+	string CssClass => Cx("megamenu text-inherit", DirectionClass, PanelWidthClass, SizeClass, Class);
+
+	string DirectionClass => Direction == DDirection.Vertical ? "megamenu-vertical" : Responsive ? "max-sm:megamenu-vertical" : null;
+
+	string PanelWidthClass => PanelWidth switch
+	{
+		DMegamenuPanelWidth.Wide => "megamenu-wide",
+		DMegamenuPanelWidth.Full => "megamenu-full",
+		_ => null
+	};
+
+	string SizeClass => Size switch
+	{
+		DSize.Xs => "megamenu-xs",
+		DSize.Sm => "megamenu-sm",
+		DSize.Lg => "megamenu-lg",
+		DSize.Xl => "megamenu-xl",
+		_ => null
+	};
+}