- Add wiki/Install-Portainer.md with stack setup, image tag strategy, update instructions, named volumes, and 7 annotated screenshots
- Add tag strategy sections (latest / major / pinned) to Install-Docker.md, Install-Docker-Compose.md, and Updating.md
- Add named volumes examples with Docker Compose volumes reference link to Install-Docker.md, Install-Docker-Compose.md, and Install-Portainer.md
- Add Portainer update section with screenshots to Updating.md
- Add Install-Portainer entry to _Sidebar.md
Adds the complete TREK documentation wiki covering installation,
trip planning, admin panel, MCP/AI integration, addons, and operations.
Also fixes encrypt-at-rest gaps: mapbox_access_token, Synology
credentials, per-user webhook/ntfy tokens, and photo passphrases
are now rotated by migrate-encryption.ts and stored encrypted via
settingsService.