refactor: implement i18n in MetodologiaDrawer (phase 4)
Refactored MetodologiaDrawer to use react-i18next translations:
- All 8 subsections (DataSummary, Pipeline, Taxonomy, KPI, CPI, BeforeAfter, SkillsMapping, Guarantees)
- 100+ text strings replaced with t() calls
- Month names in date formatting
Added translation keys to es.json and en.json:
- methodology section with 40+ new keys
- CPI calculation components
- Impact analysis labels
- Skill mapping explanations
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https://claude.ai/code/session_4f888c33-8937-4db8-8a9d-ddc9ac51a725
92931ea2dd