fix(cloud): cleanup workflow — add --repo flag, skip service deletion

Bug #24: gh issue close needs --repo flag (not a git repo in Actions)
Bug #25: service deletion unnecessary with pooled services

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Antigravity Agent

.github/workflows/agent-cleanup.yml

@@ -12,38 +12,15 @@ jobs:
     steps:
       - name: Extract issue number
         id: issue
-        run: echo "number=$(echo '${{ github.event.pull_request.head.ref }}' | grep -oP '\d+')" >> $GITHUB_OUTPUT
-
-      - name: Kill agent container via Railway API
-        env:
-          RAILWAY_API_TOKEN: ${{ secrets.RAILWAY_API_TOKEN }}
-          RAILWAY_PROJECT_ID: ${{ secrets.RAILWAY_PROJECT_ID }}
-        run: |
-          ISSUE="${{ steps.issue.outputs.number }}"
-          SERVICE_NAME="agent-${ISSUE}"
-          echo "🗑️ Cleaning up ${SERVICE_NAME}..."
-
-          # Find service by name
-          SERVICES=$(curl -s -X POST "https://backboard.railway.com/graphql/v2" \
-            -H "Authorization: Bearer ${RAILWAY_API_TOKEN}" \
-            -H "Content-Type: application/json" \
-            -d "{\"query\":\"query { project(id: \\\"${RAILWAY_PROJECT_ID}\\\") { services { edges { node { id name } } } } }\"}")
-
-          SERVICE_ID=$(echo "$SERVICES" | jq -r ".data.project.services.edges[].node | select(.name == \"${SERVICE_NAME}\") | .id" 2>/dev/null || true)
-
-          if [ -n "$SERVICE_ID" ]; then
-            curl -s -X POST "https://backboard.railway.com/graphql/v2" \
-              -H "Authorization: Bearer ${RAILWAY_API_TOKEN}" \
-              -H "Content-Type: application/json" \
-              -d "{\"query\":\"mutation { serviceDelete(id: \\\"${SERVICE_ID}\\\") }\"}" > /dev/null 2>&1
-            echo "✅ Service ${SERVICE_NAME} deleted"
-          else
-            echo "⚠️ Service ${SERVICE_NAME} not found (may already be deleted)"
-          fi
+        run: echo "number=$(echo '${{ github.event.pull_request.head.ref }}' | sed 's/[^0-9]//g')" >> $GITHUB_OUTPUT
 
       - name: Close issue
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          gh issue close ${{ steps.issue.outputs.number }} \
-            --comment "🏠 Agent returned home. Container destroyed. PR merged."
+          ISSUE="${{ steps.issue.outputs.number }}"
+          echo "🏠 Closing issue #${ISSUE} after PR merge..."
+          gh issue close "${ISSUE}" \
+            --repo "${{ github.repository }}" \
+            --comment "🏠 Agent returned home. PR merged. Services are pooled (not destroyed)." \
+            2>/dev/null || echo "⚠️ Issue #${ISSUE} already closed or not found"