feat(ios): launch via XCTest with env vars for hierarchy/tap access (#39)

* feat(proto): add env map to LaunchRequest

* feat(driver): add env param to Launch interface and all implementations

* feat(sidecar): add IosDriverBackend using Maestro IOSDriver + env pass-through

* feat(testrun): launch iOS app via XCTest with env vars instead of simctl

* fix(ios): replace LaunchApp with BootedUDID; simctl launch moved to XCTest path

* test(cli): add tests for ios platform flag and ios-device flag parsing

* fix(sdk-ios): check semaphore wait result; resolve port from args and env; register extractors before start

internal/driver/mock/mock_test.go

@@ -29,7 +29,7 @@ func TestRecordsAllActionsInOrder(t *testing.T) {
 	mock := New()
 	ctx := context.Background()
 
-	if err := mock.Launch(ctx, "com.example", true); err != nil {
+	if err := mock.Launch(ctx, "com.example", true, nil); err != nil {
 		t.Fatal(err)
 	}
 	if err := mock.Tap(ctx, 100, 200); err != nil {