init: HejYou API Server (Hono + Node.js + TypeScript)

Thin proxy between React app and Directus.
Admin token stays server-side; clients get own 30-day JWTs.
Endpoints: /auth/* register/login/profile/me, /words, /questions,
/qa-pairs, /pair, /progress, /assets/:fileId

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

package.json

@@ -0,0 +1,19 @@
+{
+  "name": "hejyou-api",
+  "version": "1.0.0",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc",
+    "start": "node dist/index.js"
+  },
+  "dependencies": {
+    "@hono/node-server": "^1.13.7",
+    "hono": "^4.7.0",
+    "dotenv": "^16.4.7"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.7",
+    "tsx": "^4.19.2",
+    "typescript": "^5.7.3"
+  }
+}