toQueryUrl

Build the planner URL that prefills these params and auto-runs the simulation (run=1).

useHostBridge asks the planner to hand its result to a native host bridge rather than to its own share sheet. Only a host that actually provides one should set it: opened in an ordinary browser, bridge=1 points the finished estimate at something that is not there, and the user's own way of saving it is what they need instead.

Advanced params map onto the planner's flat query contract (receiver / simulation / display sections).