5addc9dae9
Move to openspec/changes/archive/2026-07-09-service-credential-tester/ (R100 renames preserved). 9 artifacts. Canonical openspec/specs/ service-credential-testing/ remains. Resolves qBit 'login failed' #3 pain at the UI layer (auth failure surfaced in result pill, no log-digging). Carry-overs in archive-report incl N-2 strengthened, N-6 presentational panel, edit-surface-is-Settings.tsx source-finding.