init: HejYou Language Learning App (React + Vite)

React SPA with Vite, Directus backend, canvas-confetti.
Includes Dockerfile (multi-stage Node → nginx) for Coolify deployment.

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

src/index.css

@@ -0,0 +1,22 @@
+@import url('https://fonts.googleapis.com/css2?family=Lora:wght@700&family=Nunito:wght@400;500;600;700;800&display=swap');
+
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
+  background: #EDE0CE;
+  color: #4A3728;
+  height: 100dvh;
+  overflow: hidden;
+  line-height: 1.7;
+}
+
+#root {
+  height: 100dvh;
+  display: flex;
+  flex-direction: column;
+}