Fix Geoapify production routing and saved provider display

[stef-k]

Summary

• parse Geoapify's documented JSON route geometry as {lon, lat} points
• keep already-saved geocoding and directions providers visible and selected after refresh, including when temporarily blocked
• replace the incorrect array-shaped routing fixtures with the provider contract

Validation

• focused routing/provider setup tests: 44 passed
• LOC policy: no changed-file failures
• Code Guard: no failures; existing cohesive parser complexity and cumulative changelog size are review-only
• git diff --check: passed

Provider evidence

Geoapify documents that ormat=json returns route geometry points as {lon, lat} objects.

No migration or deployment changes.