Docs: Nomad IA (#26063)

* Move commands from docs to its own root-level directory

* temporarily use modified dev-portal branch with nomad ia changes

* explicitly clone nomad ia exp branch

* retrigger build, fixed dev-portal broken build

* architecture, concepts and get started individual pages

* fix get started section destinations

* reference section

* update repo comment in website-build.sh to show branch

* docs nav file update capitalization

* update capitalization to force deploy

* remove nomad-vs-kubernetes dir; move content to what is nomad pg

* job section

* Nomad operations category, deploy section

* operations category, govern section

* operations - manage

* operations/scale; concepts scheduling fix

* networking

* monitor

* secure section

* remote auth-methods folder and move up pages to sso; linkcheck

* Fix install2deploy redirects

* fix architecture redirects

* Job section: Add missing section index pages

* Add section index pages so breadcrumbs build correctly

* concepts/index fix front matter indentation

* move task driver plugin config to new deploy section

* Finish adding full URL to tutorials links in nav

* change SSO to Authentication in nav and file system

* Docs NomadIA: Move tutorials into NomadIA branch (#26132)

* Move governance and policy from tutorials to docs

* Move tutorials content to job-declare section

* run jobs section

* stateful workloads

* advanced job scheduling

* deploy section

* manage section

* monitor section

* secure/acl and secure/authorization

* fix example that contains an unseal key in real format

* remove images from sso-vault

* secure/traffic

* secure/workload-identities

* vault-acl change unseal key and root token in command output sample

* remove lines from sample output

* fix front matter

* move nomad pack tutorials to tools

* search/replace /nomad/tutorials links

* update acl overview with content from deleted architecture/acl

* fix spelling mistake

* linkcheck - fix broken links

* fix link to Nomad variables tutorial

* fix link to Prometheus tutorial

* move who uses Nomad to use cases page; move spec/config shortcuts

add dividers

* Move Consul out of Integrations; move namespaces to govern

* move integrations/vault to secure/vault; delete integrations

* move ref arch to docs; rename Deploy Nomad back to Install Nomad

* address feedback

* linkcheck fixes

* Fixed raw_exec redirect

* add info from /nomad/tutorials/manage-jobs/jobs

* update page content with newer tutorial

* link updates for architecture sub-folders

* Add redirects for removed section index pages. Fix links.

* fix broken links from linkcheck

* Revert to use dev-portal main branch instead of nomadIA branch

* build workaround: add intro-nav-data.json with single entry

* fix content-check error

* add intro directory to get around Vercel build error

* workound for emtpry directory

* remove mdx from /intro/ to fix content-check and git snafu

* Add intro index.mdx so Vercel build should work

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Co-authored-by: Tu Nguyen <[email protected]>

Author: aimeeu