diff --git a/deploy/convert_server.py b/deploy/convert_server.py
index b5c9e0d..702017f 100755
--- a/deploy/convert_server.py
+++ b/deploy/convert_server.py
@@ -40,6 +40,8 @@ class Handler(BaseHTTPRequestHandler):
             self._handle_process_v2(parsed)
         elif parsed.path == "/health":
             self._json({"ok": True, "db": DB_CONFIG["dbname"]})
+        elif parsed.path == "/app.js":
+            self._handle_app_js()
         elif parsed.path == "/api/supplements":
             self._handle_api_supplements(parsed)
         elif parsed.path.startswith("/api/documents/"):
@@ -117,6 +119,21 @@ class Handler(BaseHTTPRequestHandler):
             "elements_json": doc.get("elements_json"),
         })
 
+    # ── /app.js (static) ───────────────────────────────────────────────────
+
+    def _handle_app_js(self):
+        try:
+            with open(os.path.join(os.path.dirname(__file__), "..", "app.js"), "rb") as f:
+                js = f.read()
+            self.send_response(200)
+            self.send_header("Content-Type", "application/javascript; charset=utf-8")
+            self.send_header("Content-Length", str(len(js)))
+            self._send_cors()
+            self.end_headers()
+            self.wfile.write(js)
+        except FileNotFoundError:
+            self.send_error(404)
+
     # ── /upload ───────────────────────────────────────────────────────────
 
     def _handle_upload(self):