Consistent llm-* naming scheme for all LLM CLI commands. llm-catalog shows
provider metadata and key status; llm-check sends a minimal prompt to verify
connectivity.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add `markitect helper <QUESTION>` CLI command that answers questions
about markitect using its own documentation as LLM context. Uses
OpenRouter with openrouter/aurora-alpha by default; model is
configurable via --model flag or MARKITECT_HELPER_MODEL env var.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
