fix: tarball workflow failures (root ownership, swapfile, hermes TTY) (#2240)

- Use sudo mv + chown for tarball in release step (root-owned from capture)
- Skip swapfile creation if /swapfile already exists (GitHub Actions runners)
- Tolerate hermes setup wizard failure when /dev/tty unavailable in CI

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/agent-tarballs.yml

@@ -113,7 +113,7 @@ jobs:
             fi
 
             echo "==> Running: ${cmd}"
-            sudo HOME=/root bash -c "${cmd}"
+            sudo HOME=/root bash -c "${cmd}" < /dev/null
             i=$((i + 1))
           done
 
@@ -134,8 +134,9 @@ jobs:
           DATE=$(date -u +%Y%m%d)
           TARBALL="spawn-agent-${AGENT_NAME}-x86_64-${DATE}.tar.gz"
 
-          # Move tarball to expected name
-          mv "/tmp/spawn-agent-${AGENT_NAME}.tar.gz" "${TARBALL}"
+          # Move tarball to expected name (tarball is owned by root from sudo capture)
+          sudo mv "/tmp/spawn-agent-${AGENT_NAME}.tar.gz" "${TARBALL}"
+          sudo chown "$(id -u):$(id -g)" "${TARBALL}"
 
           # Delete existing release if present (rolling release)
           gh release delete "${TAG}" --yes 2>/dev/null || true

packer/agents.json

@@ -32,14 +32,14 @@
   "zeroclaw": {
     "tier": "minimal",
     "install": [
-      "fallocate -l 4G /swapfile && chmod 600 /swapfile && mkswap /swapfile && swapon /swapfile",
+      "if [ ! -f /swapfile ]; then fallocate -l 4G /swapfile && chmod 600 /swapfile && mkswap /swapfile && swapon /swapfile; fi",
       "curl -LsSf https://raw.githubusercontent.com/zeroclaw-labs/zeroclaw/a117be64fdaa31779204beadf2942c8aef57d0e5/scripts/bootstrap.sh | bash -s -- --install-rust --install-system-deps --prefer-prebuilt"
     ]
   },
   "hermes": {
     "tier": "minimal",
     "install": [
-      "curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash"
+      "curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash || [ -f ~/.local/bin/hermes ]"
     ]
   }
 }