feat: support batch txs

.github/workflows/bytecode.yml

@@ -8,13 +8,17 @@ on:
       - "artifacts/native_runtime.hex"
       - "artifacts/erc20_deployment.hex"
       - "artifacts/erc20_runtime.hex"
+      - "artifacts/erc20_batch_deployment.hex"
+      - "artifacts/erc20_batch_runtime.hex"
   push:
     paths:
       - "src/**"
       - "artifacts/native_deployment.hex"
       - "artifacts/native_runtime.hex"
       - "artifacts/erc20_deployment.hex"
       - "artifacts/erc20_runtime.hex"
+      - "artifacts/erc20_batch_deployment.hex"
+      - "artifacts/erc20_batch_runtime.hex"
   workflow_dispatch:
 
 jobs:
@@ -71,7 +75,7 @@ jobs:
           if echo "$CHANGED_FILES" | grep -qE '^src/'; then
             echo "Detected changes in src/."
             MISSING=()
-            for f in native_deployment native_runtime erc20_deployment erc20_runtime; do
+            for f in native_deployment native_runtime erc20_deployment erc20_runtime erc20_batch_deployment erc20_batch_runtime; do
               if echo "$CHANGED_FILES" | grep -qE "^artifacts/${f}\\.hex$"; then
                 echo "artifacts/${f}.hex changed as expected."
               else

Makefile

@@ -0,0 +1,4 @@
+.PHONY: artifacts
+
+artifacts:
+	@./scripts/update_artifacts.sh

scripts/update_artifacts.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Regenerate the pinned bytecode hex files in artifacts/ from the Forge build.
+# Run after any change to src/ that affects compiled output. CI's bytecode
+# guard requires these files to be updated in the same PR as src/ changes.
+#
+# Usage:
+#   make artifacts                      # from repo root (recommended)
+#   ./scripts/update_artifacts.sh       # from repo root
+#   bash scripts/update_artifacts.sh    # if not executable
+#
+# Requires: foundry (forge) and jq on PATH.
+
+set -euo pipefail
+
+cd "$(dirname "$0")/.."
+
+forge build --silent
+
+extract() {
+  local contract="$1"
+  local prefix="$2"
+  local json="out/${contract}.sol/${contract}.json"
+
+  if [[ ! -f "$json" ]]; then
+    echo "error: $json not found — did 'forge build' succeed?" >&2
+    exit 1
+  fi
+
+  jq -r '.bytecode.object'         "$json" > "artifacts/${prefix}_deployment.hex"
+  jq -r '.deployedBytecode.object' "$json" > "artifacts/${prefix}_runtime.hex"
+  echo "  artifacts/${prefix}_{deployment,runtime}.hex"
+}
+
+echo "Updating bytecode artifacts:"
+extract EscrowERC20  erc20
+extract EscrowNative native
+extract EscrowBatch  erc20_batch