docs(design): remove SVG, use PNG logo only

SVG icon is no longer in use. public/logo.png (1024x1024 RGBA) is
the single logo asset. DESIGN.md updated accordingly: SVG snippet
removed, wordmark pattern and <head> references updated to PNG.

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

node_modules/any-promise/register-shim.js

@@ -0,0 +1,18 @@
+"use strict";
+module.exports = require('./loader')(window, loadImplementation)
+
+/**
+ * Browser specific loadImplementation.  Always uses `window.Promise`
+ *
+ * To register a custom implementation, must register with `Promise` option.
+ */
+function loadImplementation(){
+  if(typeof window.Promise === 'undefined'){
+    throw new Error("any-promise browser requires a polyfill or explicit registration"+
+      " e.g: require('any-promise/register/bluebird')")
+  }
+  return {
+    Promise: window.Promise,
+    implementation: 'window.Promise'
+  }
+}