When required flags are missing and stdin is a TTY, launch a step-by-step wizard using charmbracelet/huh instead of erroring out. Flags still work for scripting and CI — non-TTY/--json mode returns a clear missing-flags error. Wizard features: - Status page select with URL display (sr create) - Component multi-select from the selected page (sr create) - Status report select with unresolved-first filtering (sr add-update) - Multi-line message input for create, single-line for add-update - Summary note + confirmation before submission - Ctrl+C prints "Aborted." and exits 130 Also adds IsStdinTerminal() to internal/cli for proper stdin TTY detection.