Credited by CivFix label on event hours

[byteful]

What changed

On a finished event's "Volunteer hours" card, a credit that a CivFix operator added for someone who isn't on the event's list now reads "Credited by CivFix" instead of "Former attendee". Web and mobile.

Before you start

• Where: civfix.dev and the TestFlight build, after merge, with the backend admin-hours PR and the admin credit form on staging
• Sign in as: the event's host (web and mobile); an operator on admin.civfix.dev
• Data: an ended event, and a citizen who never joined it
• Related PRs: Credit volunteer hours from the admin civfix-admin#48 (credit form)
• Stacked on: Admin volunteer hours contract #59 — test with it merged

Verify

[Admin]

1. Open "Users", pick the citizen, open "Hours", click "Credit hours", pick the ended event under "Event credit", enter "1", type a reason and confirm — Expect: toast " · +1 h"

[Web]

1. As the host, open the ended event — Expect: the "Volunteer hours" card has a row "Credited by CivFix" with "1 hrs", and the total includes it
2. In Settings open "Language" and pick "Español", then reopen the event — Expect: the row reads "Acreditado por CivFix"

[Mobile]

1. As the host, open the same event — Expect: the row reads "Credited by CivFix" with "1 hrs"

Regression

Host hours card — [Web] [Mobile]

1. On the same event, look at attendees the host credited — Expect: they show their names; your own row shows "You"
2. Credit an attendee as the host, then remove them from the event ("More options for " → "Remove from event") — Expect: their row reads "Former attendee"

Not covered

• German and Korean wording: only Spanish is checked here; all four languages carry the label.