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/sidecar/client.go

@@ -48,10 +48,11 @@ func (c *Client) WaitForHealth(ctx context.Context, pollInterval time.Duration)
 	}
 }
 
-func (c *Client) Launch(ctx context.Context, bundleID string, clearState bool) error {
+func (c *Client) Launch(ctx context.Context, bundleID string, clearState bool, env map[string]string) error {
 	_, err := c.stub.Launch(ctx, &driverpb.LaunchRequest{
 		BundleId:   bundleID,
 		ClearState: clearState,
+		Env:        env,
 	})
 	return err
 }

internal/driver/sidecar/client_test.go

@@ -191,7 +191,7 @@ func TestClient_LaunchAndTerminate(t *testing.T) {
 	client, _ := Dial(state.address)
 	defer client.Close()
 
-	if err := client.Launch(context.Background(), "com.example", true); err != nil {
+	if err := client.Launch(context.Background(), "com.example", true, nil); err != nil {
 		t.Fatal(err)
 	}
 	if state.fake.launchedBundleID != "com.example" || !state.fake.clearState {