Package library as @moduletrace/twui npm package

- Move components/ to src/ and compile to dist/ with tsc
- Add root barrel export plus deep-import subpath exports and base.css export
- Post-compile step: copy base.css, add .js import extensions, mark client modules
- Add publish.sh and .npmrc for the Gitea npm registry
- Fix type errors, guard TinyMCE env access, drop ace-builds type dependency
- Rename clashing props type names, remove Next.js scaffolding and unused deps

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/layout/H5.tsx

@@ -0,0 +1,24 @@
+import type { DetailedHTMLProps, HTMLAttributes } from "react";
+import { twMerge } from "tailwind-merge";
+
+/**
+ * # H5 Headers
+ * @className twui-h5
+ */
+export default function H5({
+    ...props
+}: DetailedHTMLProps<HTMLAttributes<HTMLHeadingElement>, HTMLHeadingElement>) {
+    return (
+        <h5
+            {...props}
+            className={twMerge(
+                "mb-4",
+                "twui-headings twui-heading",
+                "twui-h5",
+                props.className,
+            )}
+        >
+            {props.children}
+        </h5>
+    );
+}