Release v2.10.0

Added

• cratis init --no-context writes the skill and prompt files but leaves the tool's instruction file alone, for repositories that generate AGENTS.md, CLAUDE.md or .github/copilot-instructions.md from a shared corpus and propagate them. Appending to such a file is undone by the next sync — the reference disappears at an unpredictable later moment, which is harder to notice than never adding it. The skip is reported and names what to add instead, so the catalog does not end up on disk with nothing pointing at it. (#81)