Remove the local "am denied access to" step, now redundant with @vardot/varbase-e2e 2.0.4

Problem/Motivation

@vardot/varbase-e2e 2.0.4 now ships the same step this recipe defines locally:

Then I am denied access to "/admin/config/ai/figma"

• Ours: tests/step-definitions/ai-figma.steps.js:89
• The library's: navigation.steps.js:264

Nothing is broken here yet — no scenario in this recipe uses that sentence, so the run is still clean. It is a duplicate waiting to bite: the same local step took out 4 scenarios in Varbase AI Figma the moment a scenario used it. A tidy-up, not a bug.

Keep the library one. It passes on any refusal a site can give — 403, 404, an access-denied page, or a redirect to the log-in form — and it is documented in docs/steps/navigation.md. Ours only checked the status code.

Steps to reproduce

1. On 1.0.x, run npm install so @vardot/varbase-e2e resolves 2.0.4.
2. Run npx cucumber-js --dry-run. No site, no browser: the run stops before that.

6 scenarios (6 skipped)
91 steps (91 skipped)

Clean, because no scenario uses the sentence yet. Add it to one and the same
run fails with "Multiple step definitions match".

Proposed resolution

• Delete the local step (and its doc block) from tests/step-definitions/ai-figma.steps.js. Nothing else in that file changes.
• Require @vardot/varbase-e2e ^2.0.4.
• No feature file changes.

Dry-run after the change: 6 scenarios, 91 steps, nothing ambiguous, nothing undefined. The browser suite needs a live site, so CI is what confirms the scenarios still pass.

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix
• ✅ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support
• ➖ User Guide Documentation support
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ✅ Update Release Notes
• ✅ Release

User interface changes

• None. This is the test suite only.

API changes

• None.

Data model changes

• None.

Release notes snippet

• Test suite: the access-denied step now comes from @vardot/varbase-e2e 2.0.4 instead of a local copy.