Fixes #39630 - REX Job Wizard host autofill when display_fqdn_for_host setting is disabled

[snarya07]

Summary

Fixes #39630 — REX Job Wizard shows "0 selected hosts" when triggered from Hosts Overview page with display_fqdn_for_hosts settings is disabled

Root cause

When scheduling a job from host Overview with display_fqdn_for_hosts disabled, autofill.js stored the short display_name in the name property used by buildHostQuery. That produced a name ^ (shortname) search against the FQDN stored in the database, so the host preview showed 0 hosts even though the host was fetched by ID.

• The fix keeps name as the canonical FQDN for queries and displayName for UI labels, and resolves non-numeric host_ids[] with name ^ (hostname) instead of id = hostname.

Fix

• Add buildHostSearchFromIds() for correct API search by ID or hostname
• Store name (canonical FQDN) and displayName (UI label) separately in autofill host targets

Files changed

• webpack/JobWizard/autofill.js
• webpack/JobWizard/steps/HostsAndInputs/__tests__/HostsAndInputs.test.js

Test plan

• cd ~/foreman && npm run test:plugins foreman_remote_execution -- webpack/JobWizard/steps/HostsAndInputs/__tests__/HostsAndInputs.test.js
• Manual: display_fqdn_for_hosts = No → Host Overview → Schedule a job → 1 host selected
• Manual: display_fqdn_for_hosts = Yes → same flow, no regression

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