[plan] Replace gh repo view with repository.Current()

[github-actions]

Objective

Replace the shell-out gh.Exec("repo", "view", ...) call with the native repository.Current() function for detecting the current repository.

Context

This is a quick win that eliminates unnecessary process spawning and provides cleaner, more idiomatic Go code. The native function also respects the GH_REPO environment variable automatically.

Files to Modify

• Update: pkg/workflow/repository_features_validation.go (line ~182)

Current Implementation

stdOut, _, err := gh.Exec("repo", "view", "--json", "nameWithOwner", "-q", ".nameWithOwner")
if err != nil {
    return "", fmt.Errorf("failed to get repository name: %w", err)
}
repo := strings.TrimSpace(stdOut.String())

Target Implementation

import "github.com/cli/go-gh/v2/pkg/repository"

repo, err := repository.Current()
if err != nil {
    return "", fmt.Errorf("failed to get repository name: %w", err)
}
repoName := fmt.Sprintf("%s/%s", repo.Owner(), repo.Name())

Acceptance Criteria

• gh.Exec("repo", "view", ...) replaced with repository.Current()
• Import github.com/cli/go-gh/v2/pkg/repository added
• Error handling preserved
• All unit tests pass (make test-unit)
• Code builds successfully (make build)

Expected Impact

• Performance: ~5-10x faster (no process spawning)
• Code Quality: More readable and maintainable
• Reliability: Better error messages from native function

Estimated Effort

5-10 minutes
Related to #5828

AI generated by Plan Command for discussion #5826