Initial commit: Anki flashcard creator web app

Converts Japanese vocab (Kanji/Hiragana/English) to Anki CSV format.
Served on port 4002 with a dark-themed two-panel UI.

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

server.js

@@ -0,0 +1,30 @@
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const PORT = 4002;
+const ROOT = __dirname;
+
+const mime = {
+  '.html': 'text/html',
+  '.css':  'text/css',
+  '.js':   'text/javascript',
+};
+
+http.createServer((req, res) => {
+  const urlPath = req.url === '/' ? '/index.html' : req.url;
+  const file = path.join(ROOT, urlPath);
+
+  fs.readFile(file, (err, data) => {
+    if (err) {
+      res.writeHead(404);
+      res.end('Not found');
+      return;
+    }
+    const ext = path.extname(file);
+    res.writeHead(200, { 'Content-Type': mime[ext] || 'text/plain' });
+    res.end(data);
+  });
+}).listen(PORT, () => {
+  console.log(`Anki FC Creator running at http://localhost:${PORT}`);
+});