Cleaned up ghost/core's zod dependency to use the catalog

[9larsons]

ghost/core pinned zod inline at 4.1.12, which is exactly the catalog value. With catalogMode: strict, every other zod consumer already references the catalog; pointing ghost/core at catalog: keeps the version single-sourced.

Pure no-op: only the lockfile specifier changes, resolution is unchanged.

[coderabbitai]

Walkthrough

The PR updates the zod dependency in ghost/core/package.json from a pinned version (4.1.12) to a catalog-based specification (catalog:), enabling centralized version management through the project's version catalog system. This aligns the dependency with the repository's package management strategy.

Possibly related PRs

• TryGhost/Ghost#27902: Updates catalog resolution enforcement via catalogMode: strict, establishing the framework for catalog-based dependency specs in this PR.
• TryGhost/Ghost#27870: Configures pnpm publish to rewrite catalog references before npm publishing, directly supporting the catalog spec introduced in this change.

Suggested reviewers

• troyciesco

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: updating ghost/core's zod dependency to use the project's catalog system.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The pull request description clearly explains the change: updating ghost/core's zod dependency from a pinned inline version to use the catalog-based version spec for consistency with other zod consumers, resulting in a pure no-op lockfile change.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch deps/zod-catalog

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.70%. Comparing base (80b1fcf) to head (dd3946e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #28320      +/-   ##
==========================================
- Coverage   73.70%   73.70%   -0.01%     
==========================================
  Files        1535     1535              
  Lines      130745   130745              
  Branches    15641    15641              
==========================================
- Hits        96369    96365       -4     
+ Misses      33413    33394      -19     
- Partials      963      986      +23     

Flag	Coverage Δ
admin-tests	54.68% <ø> (ø)
e2e-tests	73.70% <ø> (-0.01%)	⬇️

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