Resolve the project url from the plain Host rule only

[turegjorup]

idc url returns a malformed URL for any project whose nginx carries a second Traefik router, so idc open opens a blank browser tab.

Changes

• scripts/itkdev-docker-compose, the url case: the jq host pattern goes from ^Host\(`(?<host>.+)`\)$ to ^Host\(`[^`]+`\)$ in the filter, and the capture likewise
• Dropped the unused named group from the test call; only capture needs it

Why

. matches a backtick, and .+ is greedy, so the "bare Host rule" filter matched compound rules too. Given

Host(`itksites.local.itkdev.dk`) && PathPrefix(`/health/detail`)

the pattern still matches — the value starts with Host(` , ends with `), and .+ swallows the `) && PathPrefix(` in between — so nothing gets filtered and the capture returns that whole middle section as the host.

first then picks by label order, and traefik.http.routers.itksites-health.rule sorts ahead of traefik.http.routers.itksites.rule (- is 0x2D, . is 0x2E). So idc url printed

http://itksites.local.itkdev.dk`) && PathPrefix(`/health/detail

and open could not parse it. With [^`]+ a backtick can no longer be consumed, the compound rule fails the closing anchor and is excluded, and the capture yields the hostname alone.

Verified against devops_itksites, which has two such routers (/cron-metrics and /health/detail): idc url now prints http://itksites.local.itkdev.dk and idc open lands on the site.

Worth noting the bug is invisible without jq installed — that branch is skipped entirely and the script falls back to COMPOSE_DOMAIN.