Use Node.js for webserver instead of Python

Added serve.js - simple static file server using Node's http module.
Updated Justfile to use node serve.js for consistency.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/Justfile b/Justfile
index 43861c8..33a04dc 100644
--- a/Justfile
+++ b/Justfile
@@ -9,10 +9,10 @@ build:
 
 # Start webserver and open in Firefox
 open:
-    python -m http.server 9000 &
+    node serve.js 9000 &
     sleep 1
     firefox http://localhost:9000
 
 # Stop the webserver
 stop:
-    pkill -f "http.server 9000" || true
+    pkill -f "node serve.js" || true