[imrja8]

What is this PR about?

Why

Fresh installs get Traefik from install.sh, which hardcodes traefik:v3.6.25. That version is out of security support (Dokploy/dokploy#5697). Dokploy now pins v3.7.16 and adds a way to check and update Traefik from the dashboard (, Dokploy/dokploy#5756). This PR keeps the installer and the docs in line with it.

What

• apps/website/public/install.sh: traefik:v3.6.25 → traefik:v3.7.16, in the install command and the commented swarm example.
• core/manual-installation.mdx:
  • "Updating Traefik" now explains how to check the version and update it from the dashboard, on the Dokploy server and on remote servers, and what the update keeps and protects.
  • The manual steps remain below as "Updating Traefik manually", with the stale v3.6.7 example fixed.
• core/troubleshooting/instance.mdx: Traefik image bumped to v3.7.16 in the recovery commands.
• core/remote-servers/validate.mdx: added the new Traefik Installed validation row, and removed the outdated "7 components" count (the list already had 8 items).
• core/remote-servers/index.mdx: "View Actions" now mentions checking and updating the Traefik version.

Checks

• install.sh passes sh -n.
• All changed MDX pages compile.

Merge order: this documents the feature from . Merge it when that PR ships, so the docs and installer match the released Dokploy version.

Issues related

Reference: (Dokploy/dokploy#5756)