backup(books-vds): daily 06:00 MSK pipeline to kreknin live 🟢

- scripts/books-vds-backup-daily-kreknin/ — run.sh + .env.example + README
- ES path.repo bootstrap (one-time stack edit, snapshot repo 'kreknin' registered)
- curl smtps://yandex:465 email (CRLF + Date headers, no msmtp dep on CentOS 7)
- StrictHostKeyChecking=yes + pre-populated known_hosts (CentOS 7 no accept-new)
- cron /etc/cron.d/books-vds-backup live, initial sync 4.87 GB in 13m28s, ntfy push sent
- wiki: entities/books-vds.md + sources/books-vds-backup-daily-kreknin-2026-05-25.md created
- wiki: concepts/books-ssh-access → vds-kzntsv-ssh-access (was lying about books on vds-kzntsv)
- .tasks/books-vds-backup-daily-kreknin.md closed 🟢 pending phone-side verify

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.wiki/index.md

@@ -8,6 +8,7 @@ Catalog of all wiki pages. One line per page, organized by type. Updated on ever
 
 ## Entities
 
+- [books-vds](entities/books-vds.md) — Books VDS (89.253.255.133 — host4g.ru, client server hosting books app + shared mongo/minio/elasticsearch)
 - [dead-synology-diskstation](entities/dead-synology-diskstation.md) — мёртвая Synology DiskStation (source NAS)
 - [kreknin-synology](entities/kreknin-synology.md) — Kreknin Synology (backup target + DDNS)
 - [openwrt-router](entities/openwrt-router.md) — OpenWRT Router (192.168.1.1)
@@ -19,7 +20,7 @@ Catalog of all wiki pages. One line per page, organized by type. Updated on ever
 ## Concepts
 
 - [admin-infra-project](concepts/admin-infra-project.md) — design + migration plan для OpeItcLoc03/admin (canonical)
-- [books-ssh-access](concepts/books-ssh-access.md) — SSH access audit на shared VDS (books Slovo+Bookva), retained keys + add/revoke processes
+- [vds-kzntsv-ssh-access](concepts/vds-kzntsv-ssh-access.md) — SSH access audit на vds-kzntsv (infra VDS), retained keys + add/revoke processes (was misnamed `books-ssh-access` до 2026-05-25 — content всегда был про vds-kzntsv)
 - [compose-bcrypt-escape-trap](concepts/compose-bcrypt-escape-trap.md) — Docker Compose ест `$` в bcrypt hashes
 - [db-tls-self-signed-via-traefik-raw-tcp](concepts/db-tls-self-signed-via-traefik-raw-tcp.md) — DB TLS через traefik raw TCP с self-signed certs
 - [docker-host-loopback-detect](concepts/docker-host-loopback-detect.md) — Docker host-loopback detection — как доказать что host.docker.internal не петля
@@ -53,5 +54,6 @@ Catalog of all wiki pages. One line per page, organized by type. Updated on ever
 - [iis-host-migration-2026-05-19](sources/iis-host-migration-2026-05-19.md) — IIS Host Migration Session 2026-05-19 chronology
 - [iis-migration-to-ruvds-2026-05-23](sources/iis-migration-to-ruvds-2026-05-23.md) — IIS migration to RUVDS — session 2026-05-23/24 (SSH/scp pivot, 25 SNI bindings, partial DNS cutover)
 - [nas-recovery-session-2026-05-18](sources/nas-recovery-session-2026-05-18.md) — NAS Recovery Session 2026-05-18/19 chronology
+- [books-vds-backup-daily-kreknin-2026-05-25](sources/books-vds-backup-daily-kreknin-2026-05-25.md) — books VDS daily backup → kreknin pipeline standup 2026-05-25 (ES file-snapshot repo + DB dumps + curl SMTP)
 - [ruvds-backup-daily-kreknin-2026-05-24](sources/ruvds-backup-daily-kreknin-2026-05-24.md) — RUVDS daily backup → kreknin pipeline standup 2026-05-24 (rclone+SFTP, SYSTEM task)
 - [vds-kzntsv-bootstrap-2026-05-20](sources/vds-kzntsv-bootstrap-2026-05-20.md) — VDS bootstrap session 2026-05-20 chronology