feat(cli): add init-remote command for github repository creation

[arielshad]

Summary

Add a new shep repo init-remote CLI command that creates a GitHub repository via gh repo create and configures the local git remote for repositories that don't yet have one. This bridges the gap between local-only repos and GitHub-dependent shep workflows (PRs, CI, push).

Changes across Clean Architecture layers:

• Domain/Interface: Extended IGitPrService with createGitHubRepo() and addRemote() methods; added new GitPrErrorCode values (GH_NOT_FOUND, AUTH_FAILURE, REPO_CREATE_FAILED)
• Infrastructure: Implemented service methods in GitPrService using gh repo create and git remote add subprocess calls with the existing ExecFunction injection pattern
• Application: New InitRemoteRepositoryUseCase orchestrating the full flow — validate gh CLI availability, check hasRemote() guard, create repo, add remote, auto-push current branch
• Presentation/CLI: New init-remote subcommand under repo command group with [name] positional arg, --public flag, and --org <name> option
• DI: Registered new use case in the container
• Specs: Full spec-driven workflow artifacts (spec, research, plan, tasks, feature YAML, evidence)

Evidence

Evidence	Task
GitPrService.addRemote unit tests — 3 tests passing	task-3
GitPrService.createGitHubRepo unit tests — 7 tests passing	task-4
InitRemoteRepositoryUseCase unit tests — 12 tests passing	task-6
CLI integration tests — 17 tests passing	task-10
CLI help output confirms command registration	task-9
TypeScript build — zero errors	task-1
Full suite — 4087 unit + 501 integration tests passing, lint clean	task-7

Test plan

• Unit tests for addRemote() (correct args, void return, error wrapping)
• Unit tests for createGitHubRepo() (private/public/org, URL return, ENOENT→GH_NOT_FOUND, auth→AUTH_FAILURE, generic→REPO_CREATE_FAILED)
• Unit tests for InitRemoteRepositoryUseCase (happy path, guards, error propagation, name derivation, org support, visibility, Windows paths, actionable messages)
• Integration tests for CLI command (registration, arg/option parsing, success output, error handling for all error codes)
• Full test suite regression check (4087 unit + 501 integration — all green)
• Build verification (tsc compiles with zero errors)
• Lint verification (eslint clean)

🤖 Generated with Claude Code

[github-actions]

Dev Release Published

Artifact	Version	Install
npm	1.129.2-pr409.8d19a07	npm install -g @shepai/cli@1.129.2-pr409.8d19a07

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_{Published from commit a33d37f | View CI}