first integration tests (#64)

resolves #60

Co-authored-by: johba <johba@harb.eth>
Reviewed-on: https://codeberg.org/johba/harb/pulls/64

scripts/dev.sh

@@ -75,14 +75,77 @@ check_health() {
   done
 }
 
+restart_light() {
+  echo "Light restart: webapp + txn-bot only..."
+  echo "  Preserving Anvil state (contracts remain deployed)"
+
+  local webapp_container txnbot_container
+  webapp_container=$(podman ps --all \
+    --filter "label=com.docker.compose.project=${PROJECT_NAME}" \
+    --filter "label=com.docker.compose.service=webapp" \
+    --format '{{.Names}}' | head -n1)
+
+  txnbot_container=$(podman ps --all \
+    --filter "label=com.docker.compose.project=${PROJECT_NAME}" \
+    --filter "label=com.docker.compose.service=txn-bot" \
+    --format '{{.Names}}' | head -n1)
+
+  if [[ -z "$webapp_container" ]]; then
+    echo "[!!] webapp container not found - run './scripts/dev.sh start' first"
+    exit 1
+  fi
+
+  local start_time=$(date +%s)
+
+  echo "  Restarting containers..."
+  podman restart "$webapp_container" >/dev/null
+  [[ -n "$txnbot_container" ]] && podman restart "$txnbot_container" >/dev/null
+
+  echo "  Waiting for webapp to be ready..."
+  local max_attempts=30
+  local attempt=0
+  while ((attempt < max_attempts)); do
+    if curl -s -f -o /dev/null http://localhost:5173/app/ 2>/dev/null; then
+      local end_time=$(date +%s)
+      local duration=$((end_time - start_time))
+      echo "[ok] Light restart complete (~${duration}s)"
+      echo "  Web App: http://localhost:8081/app/"
+      return 0
+    fi
+    sleep 2
+    ((attempt++))
+  done
+
+  echo "[!!] Webapp failed to respond after ${max_attempts} attempts"
+  exit 1
+}
+
+restart_full() {
+  echo "Full restart: all containers + bootstrap..."
+  stop_stack
+  start_stack
+  echo "[ok] Full restart complete"
+}
+
 usage() {
   cat <<EOF
-Usage: $0 {start|stop|health}
+Usage: $0 {start|stop|health|restart [--light|--full]}
+
+Commands:
+  start              Start all services (builds kraiken-lib, runs bootstrap)
+  stop               Stop all services
+  health             Check service health
+  restart            Full restart (default: redeploys contracts)
+  restart --light    Light restart (webapp + txnbot only, preserves state)
+  restart --full     Full restart (same as 'restart')
 
 Environment Variables:
   GIT_BRANCH    Branch to checkout in containers
 
 Examples:
+  ./scripts/dev.sh start
+  ./scripts/dev.sh restart --light    # Fast frontend iteration (~10-20s)
+  ./scripts/dev.sh restart --full     # Fresh contract deployment (~3-4min)
   GIT_BRANCH=fix/something ./scripts/dev.sh start
   ./scripts/dev.sh health
 EOF
@@ -99,6 +162,20 @@ case "${1:-help}" in
   health)
     check_health
     ;;
+  restart)
+    case "${2:-}" in
+      --light)
+        restart_light
+        ;;
+      --full|"")
+        restart_full
+        ;;
+      *)
+        echo "Unknown restart mode: $2"
+        usage
+        ;;
+    esac
+    ;;
   *)
     usage
     ;;