Phase 3c: hooks now read telegram-notify-infisical (synced from homelab/prod /telegram). Deleting these 4 manifests prunes the old plaintext secrets — the bot token leaves git for the remaining 4 namespaces. Completes migration #1. NOTE: polymarket-bot/bot-secrets still embeds the same token (migration #3). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>