fix: make entrypoint auto-detect binary locations

Binary paths differ between builder stages (nested in source dirs
like /app/gateway/tools-gateway instead of /app/gateway).
Make entrypoint search multiple candidate paths.

Co-Authored-By: Kilo <kilo@kilo.ai>

scripts/entrypoint.sh

@@ -4,18 +4,48 @@
 
 set -e
 
-echo "Starting tools-gateway..."
-/app/gateway &
+# Find gateway binary (named tools-gateway or in gateway/ subdir)
+GATEWAY_BIN=""
+for candidate in /app/gateway/tools-gateway /app/gateway /app/tools-gateway /app/target/release/tools-gateway; do
+  if [ -f "$candidate" ] && [ -x "$candidate" ]; then
+    GATEWAY_BIN="$candidate"
+    break
+  fi
+done
+
+if [ -z "$GATEWAY_BIN" ]; then
+  echo "ERROR: tools-gateway binary not found"
+  ls -la /app/ 2>/dev/null | head -5
+  exit 1
+fi
+
+# Find workers binary
+WORKER_BIN=""
+for candidate in /app/workers/tools-workers /app/workers /app/tools-workers /app/target/release/tools-workers; do
+  if [ -f "$candidate" ] && [ -x "$candidate" ]; then
+    WORKER_BIN="$candidate"
+    break
+  fi
+done
+
+if [ -z "$WORKER_BIN" ]; then
+  echo "ERROR: tools-workers binary not found"
+  ls -la /app/ 2>/dev/null | head -5
+  exit 1
+fi
+
+echo "Starting tools-gateway ($GATEWAY_BIN)..."
+"$GATEWAY_BIN" &
 GATEWAY_PID=$!
 
 sleep 1
 
-echo "Starting tools-workers..."
-/app/workers &
+echo "Starting tools-workers ($WORKER_BIN)..."
+"$WORKER_BIN" &
 WORKER_PID=$!
 
 # Handle graceful shutdown
-trap "echo 'Shutting down...'; kill $GATEWAY_PID $WORKER_PID 2>/dev/null; exit 0" SIGINT SIGTERM
+trap "echo 'Shutting down...'; kill $GATEWAY_PID $WORKER_PID 2>/dev/null; wait; exit 0" SIGINT SIGTERM
 
 # Wait for either process to exit
 wait -n $GATEWAY_PID $WORKER_PID