Setup Fernando Skills

Scaffold the per-repo configuration that the spec-driven skills assume:

• specs directory — where /spec saves files (default specs/)
• response language — Spanish or English (skills mirror the user's prompt language by default; this lets you force one)
• branch prefix — what /spec-impl uses when creating branches (default spec-)

This is a prompt-driven skill, not a deterministic script. Explore, ask, then write.

Process

1. Explore

Read whatever exists; don't assume:

• CLAUDE.md and AGENTS.md at repo root — does either exist? Is there already a ## Fernando skills block?
• specs/ — does it exist? How many specs are inside?
• .git/config — is this a git repo at all? /spec-impl requires git.