Namespace ApcuCache keys and scope clear() to the namespace

[sascha-egerer]

No description provided.

[Copilot]

Pull request overview

This PR updates the APCu-backed cache implementation to prefix all stored keys with a configurable namespace (default Phirewall:) and changes clear() to delete only keys within that namespace, avoiding wiping the entire shared APCu cache segment.

Changes:

• Add a $namespace constructor argument to ApcuCache and prefix all APCu operations (including counter ::exp sidecar keys).
• Scope ApcuCache::clear() to delete only the instance namespace via APCUIterator rather than calling apcu_clear_cache().
• Add unit tests covering namespacing, namespace isolation, scoped clear(), and namespaced counter/TTL behavior; document behavior in the changelog.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
src/Store/ApcuCache.php	Namespaces all stored APCu keys and scopes clear() to only delete matching namespace entries.
tests/Unit/Store/ApcuCacheTest.php	Adds tests validating key namespacing, namespace isolation, scoped clearing, and namespaced counter sidecar keys.
CHANGELOG.md	Documents the behavioral change and migration impact of APCu key namespacing and scoped clearing.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.