Renderer slot in UserProfileView (all three profile screens) shows
specialty, practice, address, contact links and further info from
the HealthChat API, with inline retry on failure.
* feat(healthchat): add HealthChat API service layer
New features/healthchat modules: typed Retrofit client with
per-request Matrix token auth, member directory, profile and
invite services, plus test fakes and fixtures.
* test(healthchat): use runCatchingExceptions
Detekt's RunCatchingNotAllowed rule forbids plain runCatching.
joel.poyet