New screens: Guides, Library, Map, Notifications, Settings.
Home refactored with modular components (SearchHeader, HomeCta, FrequentDiseases, SeasonAlert, PracticalGuides).
Replaced hardcoded colors with theme tokens in SeasonAlert and HomeCta.
Updated navigation, i18n, and CLAUDE.md.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>