Basic CLI Structure

[abhibongale]

Build the command-line interface for StackBox using Click framework. This creates the user-facing commands that developers will use.

All commands will be stubs initially - they just print messages and accept arguments. The actual implementation comes in later issues.

Goals

• Create main CLI entry point with Click
• Define all command signatures and arguments
• Add helpful --help text for discoverability
• Make commands callable (even if they don't do anything yet)

Tasks

• Create stackbox/cli/__main__.py with main entry point
• Add stackbox init command (stub)
• Add stackbox rebuild command (stub)
• Add stackbox test command (stub)
• Add stackbox status command (stub)
• Add stackbox logs command (stub)
• Add stackbox down command (stub)
• Add --version flag
• Add helpful --help text for all commands
• Test all commands can be invoked
• Update pyproject.toml with entry point

Acceptance Criteria

• Can run stackbox --version (shows version)
• Can run stackbox --help (shows all commands)
• Can run stackbox init --help (shows command-specific help)
• All commands are recognized by CLI
• All commands print stub messages
• No errors when invoking any command
• Commands accept expected arguments/options