feat: factory function provides more context

[Benehiko]

This change provides more context to the factory function. A more informed factory, could even add additional data based on data only it knows about (e.g. via context or the id).

Another use case is returning different store.Secret types based on what is being read from the store.

store, err := store.New(
    func(ctx context.Context, id store.ID) store.Secret {
        if id.String() == "bob" {
            return &oauth.BobCredential{}
        }
        return &oauth.OAuthCredential{}
	}, 
    func(id store.ID) string { return "" },
)

[Copilot]

Pull request overview

This PR updates the Factory type signature to accept context.Context and store.ID parameters, enabling factory functions to make context-aware decisions and return different secret types based on the identifier being accessed.

Changes:

• Updated Factory function signature from func() T to func(context.Context, ID) T
• Updated all factory function invocations across stores to pass context and ID parameters
• Updated test mocks and helper functions to match the new signature

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
store/store.go	Updated Factory type signature to include context and ID parameters
store/posixage/store.go	Updated factory invocations in Filter, Get, and GetAllMetadata methods
store/posixage/store_test.go	Updated test factory functions to accept new parameters
store/keychain/keychain_darwin.go	Updated factory field type and method signatures to use context parameter
store/keychain/keychain_darwin_test.go	Added context import and updated factory function signature
store/keychain/keychain_test.go	Updated setupKeychain helper and test factories to match new signature
store/keychain/cmd/main.go	Updated factory function in command setup
plugins/pass/store/store.go	Added context import and updated PassStore factory function

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