Uses Klaro's own built-in contextual-consent mechanism (not
loadTrackingCode.ts's script-injection path) — the iframe renders
with data-name="google-maps" and its real src; Klaro's DOM scan finds
it after mount and blanks/restores src based on that service's
consent state, showing its own placeholder (styled via
KlaroConsentManager.tsx's KlaroTheme) in the meantime.
No map embedded anywhere in the app yet — this is prep work only, per
explicit request ahead of an actual page needing one.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>