Ignore jerbuild binary and build artifacts

ober

9b98975a7506adcc09f4d0b7fc901ca53e335eeb

diff --git a/.gitignore b/.gitignore
index a89a332..b7dc1b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,12 @@
 /jerboa-bin-*-main.c
 /jerboa-bin-*.wp.so
 
+# `make jerbuild` outputs (standalone .ss → .sls transpiler binary)
+/jerbuild
+/jerbuild-main.c
+/jerbuild.wp.so
+/jerbuild-*
+
 # `make native-cross` outputs (per-target Rust dylibs)
 /lib-cross/