buildRoutingOptionsFromPrefs
Builds the canonical RoutingOptions from the user's saved routing preferences (getRoutingOptions) plus the current buildIndoorOutdoorRouteOptions indoor/outdoor options. This is the SINGLE source of truth for the options the navigate flow uses, so the POI-search distance preview can reuse the exact same options and the two distances match for ALL routing prefs (accessible / avoid-stairs / elevators-escalators-ramps / indoor-outdoor), not just the defaults.
Return
RoutingOptions identical to what the navigate flow builds
Parameters
context
any context (application context is used internally)