v0.1.1 - Documentation & Repository Hygiene

Fixed

• Restored notebooks/README.md, which had been accidentally emptied while preparing the v0.1.0 release.
• Removed .agents/ (136 unrelated Claude Code UI/UX skill files, ~4 MB) from version control; it was mistakenly tracked during the mcda-tools restructuring and is now git-ignored.
• Rewrote README.es.md from scratch: it still described the pre-restructuring layout (plataforma/ as the app root, the deleted prototipos/ folder and a thesis HTML tool, a hardcoded Supabase project ref, and only 6 of the 15 migrations). It now mirrors README.md exactly, section by section.

Added

• Real screenshots of the production deployment (landing, /metodo, /citar) under docs/screenshots/, embedded in both README files.
• GitHub release badge in README.md and README.es.md.

Full Changelog: v0.1.0...v0.1.1