fix(doc): ignore all localhost URLs in the dead-link check

[kixelated]

Problem

The Check workflow is failing on every PR (including unrelated ones) because the VitePress doc build dies on a dead link:

moq-doc build: (!) Found dead link http://localhost:4443/certificate.sha256 in file setup/windows.md
x Build failed

#1732 ("Windows support") added an autolink to http://localhost:4443/certificate.sha256 in doc/setup/windows.md. VitePress can't reach that localhost URL at build time, so the dead-link check fails. The config already exempts http://localhost:5173, but not :4443.

Fix

Generalize the existing localhost exemption from a single literal to a regex matching any localhost URL (any port/path), so development-example links don't break the build going forward:

ignoreDeadLinks: [
  /^https?:\/\/localhost(:\d+)?(\/|$)/,
],

Validation

cd doc && bun run build (via nix develop) now completes (✓ building, ✓ rendering pages) with no dead-link error. Biome clean.

This unblocks CI for all open PRs.

(Written by Claude)

🤖 Generated with Claude Code

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: c27428d5-42f3-4ce6-ba3a-2a12cc0bddab

📥 Commits

Reviewing files that changed from the base of the PR and between 39c1ef7 and 890fa76.

📒 Files selected for processing (1)

• doc/.vitepress/config.ts

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Walkthrough

The VitePress ignoreDeadLinks configuration in doc/.vitepress/config.ts is updated to replace a single hardcoded http://localhost:3000 URL entry with a regular expression that matches any http:// or https:// localhost link, optionally including a port number. The accompanying comments are revised to note that these localhost URLs appear intentionally in development examples and are unreachable at build time.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: generalizing the localhost URL exemption in the dead-link check configuration from a single port to any localhost URL.
Description check	✅ Passed	The description is directly related to the changeset, explaining the problem (failing CI due to localhost dead links), the fix (regex-based localhost exemption), and validation steps.
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.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch claude/fix-doc-localhost-deadlink

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[kixelated]

Folded into #1733 so that PR is green on its own. Closing this one. (Written by Claude)