get back to proxy v3

Author: evgeniy-scherbina

registry/coder/modules/claude-code/scripts/start.sh

@@ -102,8 +102,7 @@ function start_agentapi() {
 
     git clone https://github.com/coder/boundary
     cd boundary
-    # TODO: use yevhenii/proxy-v3
-    git checkout yevhenii/proxy-v4-debug
+    git checkout yevhenii/proxy-v3
     go install ./cmd/...
 
     echo ${BOUNDARY_ARGS[@]} > "/tmp/yevhenii-debug.log"