ci: speed up install smoke on PRs

.github/workflows/install-smoke.yml

@@ -29,5 +29,6 @@ jobs:
           CLAWDBOT_INSTALL_CLI_URL: https://clawd.bot/install-cli.sh
           CLAWDBOT_NO_ONBOARD: "1"
           CLAWDBOT_INSTALL_SMOKE_SKIP_CLI: "1"
+          CLAWDBOT_INSTALL_SMOKE_SKIP_NONROOT: ${{ github.event_name == 'pull_request' && '1' || '0' }}
           CLAWDBOT_INSTALL_SMOKE_PREVIOUS: "2026.1.11-4"
         run: pnpm test:install:smoke