fix: update 301 links with trailing slash in secops pages

[cakeinpanic]

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📝 Describe your changes

1. Fix 301 trailing slash redirects in secops pages

🔎 Attach a source of truth or evidence that allows reviewers to confirm the changes independently

[Copilot]

Pull request overview

This PR updates a couple of external/internal documentation links in security-related pages to include a trailing slash before anchors/paths, avoiding 301 redirects and improving link stability.

Changes:

• Update SEAL Safe Harbor “scope-terms” link to include a trailing slash.
• Update wstETH bridging guide link to include a trailing slash before the anchor.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/security/safeharbor.md	Adds trailing slash to Safe Harbor terms link to avoid redirect.
docs/security/audits.md	Adds trailing slash before anchor in wstETH bridging guide link to avoid redirect.

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