Allow undefined as ref param type

[5ouma]

⚠️ Issue

close #

✏️ Description

Upstream Hono made that as a union.

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[Copilot]

Pull request overview

Updates the server route handler to reflect upstream Hono’s change where route params can be undefined for optional parameters, aligning the local typing with actual runtime behavior.

Changes:

• Adjust ref route param typing from string to string | undefined for the optional /:ref? route.
• Keep downstream calls (checkRedirect, getContent) consistent with their ref?: string signatures.

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[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: 6aff027e-32e4-4bea-89f5-5d7c9cc9b4e4

📥 Commits

Reviewing files that changed from the base of the PR and between 21bc99d and b532f0f.

📒 Files selected for processing (1)

• src/server.ts

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Walkthrough

The type of the local variable ref in src/server.ts was changed from string to string | undefined to account for cases where the "ref" parameter may be absent. This type change propagates to downstream functions.

Changes

Cohort / File(s)	Summary
Type annotation update src/server.ts	Changed local variable ref type from string to string | undefined to reflect optional parameter; propagates to checkRedirect and getContent functions.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: updating the ref parameter type to allow undefined in addition to string.
Description check	✅ Passed	The description explains the change is motivated by upstream Hono making the ref parameter a union type that includes undefined.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (21bc99d) to head (b532f0f).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #390   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          115       115           
  Branches         9         9           
=========================================
  Hits           115       115           

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