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/form/Textarea.tsx

@@ -0,0 +1,12 @@
+import Input, { type InputProps } from "./Input";
+
+/**
+ * # Textarea Component
+ * @className twui-textarea
+ */
+export default function Textarea<KeyType extends string>({
+    componentRef,
+    ...props
+}: InputProps<KeyType>) {
+    return <Input istextarea {...props} componentRef={componentRef} />;
+}