fix example script by appending .env

[darren-trellis]

why

pnpm run example fails because it does not have secrets.

what changed

the run script now appends secrets from .env

test plan

N/A

---

Summary by cubic

Fixes the example runner by optionally loading environment variables from the repo .env. Updates the example script in packages/core/package.json to use --env-file-if-exists=../../.env so pnpm run example picks up secrets when present and doesn’t fail if the file is missing.

^{Written for commit 8ae0e04. Summary will update on new commits.}

[changeset-bot]

⚠️ No Changeset found

Latest commit: 8ae0e04

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[github-actions]

This PR is from an external contributor and must be approved by a stagehand team member with write access before CI can run.
Approving the latest commit mirrors it into an internal PR owned by the approver.
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[cubic-dev-ai]

1 issue found across 1 file

Confidence score: 3/5

• There is a concrete usability regression risk in packages/core/package.json: the example script can fail immediately when ../../.env is absent because node --env-file throws.
• Severity/confidence (6/10, 9/10) suggests this is a real, user-facing issue for local runs; switching to --env-file-if-exists should reduce friction without changing intended behavior.
• Pay close attention to packages/core/package.json - update the example script flag to avoid hard-failing when the env file is missing.

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