## Summary
Stabilize the website nav GitHub star count in visual-test builds so
snapshot comparisons do not drift as the live GitHub count changes.
## Changes
- **What**: Added `WEBSITE_GITHUB_STARS_OVERRIDE` for build-time
star-count overrides and set it to `111000` in the website E2E and
screenshot-update workflows.
- **Dependencies**: None.
## Review Focus
Confirm the deterministic build-time override is preferable to
screenshot masking, since Playwright masks draw a colored rectangle
whose geometry can also drift when masked content changes size.
## Screenshots (if applicable)
Not included; this keeps visual-test input data stable rather than
changing the UI.
