Each of the five roles touched in this branch now ships:
* meta/argument_specs.yml: typed schema for every variable in
defaults/main.yml plus the optional inputs surfaced via this
branch (traefik_extra_hosts, authentik_host_rewrite_domains,
authentik_proxy_apps.mode / .allowed_groups, drawio_extra_domains,
drawio_authentik_forward_auth*, garage_webui_authentik_forward_auth*).
All five specs load cleanly through ansible-core's
ArgumentSpecValidator.
* README.md: replaces the ansible-galaxy boilerplate (where it was
still in place) with a focused write-up — service vars, required
secrets, ForwardAuth/idempotency notes, dependencies, and a working
example playbook. authentik and garage READMEs are rewritten to cover
the new knobs while preserving their existing content.
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