allow KVCache wrapping

[C-Pro]

allow KVCache ListByPrefix to be accessed from Locker and Updater wrappers

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.24%. Comparing base (6be9a39) to head (d4da89d).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   97.98%   99.24%   +1.26%     
==========================================
  Files           8        8              
  Lines        1190     1192       +2     
==========================================
+ Hits         1166     1183      +17     
+ Misses         18        7      -11     
+ Partials        6        2       -4     

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[Copilot]

Pull request overview

This PR enables KVCache to be used with the Locker and Updater wrapper types by refactoring the ListByPrefix method to use interface-based type assertions instead of concrete type checks. Previously, only the KV wrapper could be used with ListByPrefix in these wrappers; now both KV and KVCache implementations are supported.

Key changes:

• Introduced listerByPrefix[V] interface to enable duck typing for any cache implementing ListByPrefix
• Updated type assertions in Locker and Updater to use the new interface instead of checking for concrete *KV[V] type
• Added test coverage for KVCache usage with both wrappers

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
locker.go	Defines listerByPrefix interface and updates ListByPrefix method to use interface-based type assertion
locker_test.go	Adds TestLockerListByPrefixCache to verify KVCache works with Locker wrapper
updater.go	Updates ListByPrefix method to use interface-based type assertion (interface defined in locker.go)
updater_test.go	Adds TestUpdaterListByPrefixCache to verify KVCache works with Updater wrapper

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[Copilot]

[nitpick] The listerByPrefix interface is currently defined in locker.go but is also used in updater.go. While this works since both files are in the same package, it would be better to define this interface in a more central location (e.g., doc.go alongside the Geche interface) for better code organization and discoverability. This makes it clearer that this is a shared interface used across multiple wrapper types.