fix: simplify emulator configuration to use single port for both HTTP and gRPC

Co-Authored-By: Rushil Srivastava <[email protected]>

Author: devin-ai-integration[bot]

start-emulator.sh

@@ -1,30 +1,23 @@
 #!/bin/sh
 set -e
 
-# Start socat in the background to forward external connections
-socat TCP-LISTEN:8123,fork,reuseaddr,bind=0.0.0.0 TCP:127.0.0.1:8124 &
-SOCAT_PID=$!
-
-# Start emulator on internal port with gRPC binding
-/emulator -host 0.0.0.0 -port 8124 -grpc_port 8124 -grpc_host 0.0.0.0 &
+# Start emulator binding to all interfaces
+/emulator -host 0.0.0.0 -port 8123 -grpc_port 8123 &
 EMULATOR_PID=$!
 
 # Function to cleanup processes
 cleanup() {
-    kill $SOCAT_PID $EMULATOR_PID 2>/dev/null || true
+    kill $EMULATOR_PID 2>/dev/null || true
 }
 
 # Set up trap
 trap cleanup EXIT
 
 # Wait for emulator to be ready
 for i in $(seq 1 30); do
-    if curl -s http://127.0.0.1:8124/v1/projects/test-project/locations/us-central1/queues > /dev/null; then
-        echo "Emulator is ready on internal port!"
-        if curl -s http://localhost:8123/v1/projects/test-project/locations/us-central1/queues > /dev/null; then
-            echo "Emulator is accessible on external port!"
-            break
-        fi
+    if curl -s http://127.0.0.1:8123/v1/projects/test-project/locations/us-central1/queues > /dev/null; then
+        echo "Emulator is ready!"
+        break
     fi
     echo "Waiting for emulator... attempt $i"
     sleep 1