The PAYG settings screen is mock-only and must stay invisible to users
until the backend wallet endpoint (PR-C3.2) lands and sets
`appConfig.paygEnabled`. The demo overrides bypassed that gate via a URL
query param + localStorage, which would have let anyone with the link see
the mock data.
- AppConfigModal.tsx: drop the `paygOverride` block; `paygEnabled` and
`isLeader` now derive only from the backend `appConfig` flags.
- proprietary/configNavSections.tsx: drop the cross-flavor `PaygLeader`
import and the demo block that pushed PAYG into the proprietary nav.
PAYG is saas-only.
- Payg.tsx: trim the stale comment that justified the relative CSS import
by referencing the now-removed proprietary demo cross-import.
Connor Yoh
72e5283633