초기 커밋: DefVideo 소스 등록

abcVideo 플레이어 소스 (client / server / shared / pythonsource / docs / .claude).
.gitignore 적용으로 node_modules·storage·samplevideo·미디어 등 대용량 일괄 제외.
103 files, ~964K.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/src/routes/stream.ts

@@ -0,0 +1,16 @@
+import { Router } from 'express';
+import { streamVideo } from '../services/streaming';
+
+const router = Router();
+
+router.get('/:videoId', async (req, res) => {
+  try {
+    await streamVideo(req, res);
+  } catch (err) {
+    if (!res.headersSent) {
+      res.status(500).json({ error: 'Streaming error' });
+    }
+  }
+});
+
+export default router;