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/DComponentBase.cs

@@ -0,0 +1,27 @@
+using Microsoft.AspNetCore.Components;
+
+namespace decePubClient.Components.Daisy;
+
+/// <summary>
+/// Base of the daisyUI wrappers. A consumer's <c>class</c> lands in <see cref="Class"/> and is appended after the
+/// component's own classes; every other unmatched attribute is passed through to the root element.
+/// </summary>
+public abstract class DComponentBase : ComponentBase
+{
+	[Parameter] public string Class { get; set; }
+
+	[Parameter(CaptureUnmatchedValues = true)] public IReadOnlyDictionary<string, object> AdditionalAttributes { get; set; }
+
+	protected static string Cx(params string[] classes) => DCx.Join(classes);
+}
+
+public static class DCx
+{
+	/// <summary>
+	/// Joins the non-empty class names. Every daisyUI class handed to it must be written out whole somewhere in the
+	/// source, e.g. a switch arm <c>DColor.Primary => "btn-primary"</c>, never assembled like <c>"btn-" + color</c>:
+	/// Tailwind generates only the classes it finds in .razor and .cs files.
+	/// </summary>
+	public static string Join(params string[] classes) =>
+		string.Join(' ', classes.Where(c => !string.IsNullOrWhiteSpace(c)));
+}