Add XCUITest authoring docs and templates

XCUITestSuiteTemplate.swift

@@ -0,0 +1,48 @@
+//
+//  __FeatureName__Tests.swift
+//  SportsTimeUITests
+//
+//  Copy this file into SportsTimeUITests/Tests and rename placeholders.
+//
+
+import XCTest
+
+final class __FeatureName__Tests: BaseUITestCase {
+
+    // MARK: - Helpers
+
+    @MainActor
+    private func openHome() -> HomeScreen {
+        let home = HomeScreen(app: app)
+        home.waitForLoad()
+        return home
+    }
+
+    @MainActor
+    private func openWizard() -> TripWizardScreen {
+        let home = openHome()
+        home.tapStartPlanning()
+
+        let wizard = TripWizardScreen(app: app)
+        wizard.waitForLoad()
+        return wizard
+    }
+
+    // MARK: - Tests
+
+    /// Replace with test case ID and behavior, e.g. F-200.
+    @MainActor
+    func testF___BehaviorName() {
+        let wizard = openWizard()
+        wizard.selectDateRangeMode()
+
+        // Add scenario actions
+        // wizard.selectSport("mlb")
+        // wizard.selectRegion("central")
+
+        // Add assertions
+        XCTAssertTrue(wizard.planTripButton.exists, "Plan button should be visible")
+
+        captureScreenshot(named: "F___-BehaviorName")
+    }
+}