fix: Split Webhook into Gateway (HuggingFace) and Processor (Railway), fix missing https:// in API_URL

feat(ux): interactive buttons for language choice + LIST menu for sector selection (8 sectors FR/Wolof)

fix(redis): bypass ioredis minor version type mismatch and refactor scheduler

fix(redis): utilize ioredis and REDIS_URL for robust authenticated connections

feat: sync all recent changes (AI, whatsapp, redis passwords, script fixes)

feat: add Dockerfile and script for Hugging Face Spaces