Run oxfmt across repo, add format script and docs

Add .oxfmtignore to skip generated bindings and wasm-pack output.
Add npm format script, update DEVELOPMENT.md for Vite+ toolchain,
and format all non-generated files with oxfmt.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src-web/lib/getNodeText.ts

@@ -1,22 +1,22 @@
-import type { ReactNode } from 'react';
+import type { ReactNode } from "react";
 
 /**
  * Get the text content from a ReactNode
  * https://stackoverflow.com/questions/50428910/get-text-content-from-node-in-react
  */
 export function getNodeText(node: ReactNode): string {
-  if (typeof node === 'string' || typeof node === 'number') {
+  if (typeof node === "string" || typeof node === "number") {
     return String(node);
   }
 
   if (Array.isArray(node)) {
-    return node.map(getNodeText).join('');
+    return node.map(getNodeText).join("");
   }
 
-  if (typeof node === 'object' && node) {
+  if (typeof node === "object" && node) {
     // oxlint-disable-next-line no-explicit-any
     return getNodeText((node as any).props.children);
   }
 
-  return '';
+  return "";
 }