feat: coach first mobile task to completion (Closes #1146)

tests/e2e/test_mobile_home_bootstrap_release.py

@@ -64,6 +64,27 @@ def test_release_artifact_guides_an_empty_mobile_account_to_first_work(
             expect(page.locator("#mobile-first-task-status")).to_contain_text("Create a task now")
             expect(page.locator("#mobile-first-task-create")).to_be_enabled()
             expect(page.locator("#mobile-first-task-create")).to_be_focused()
+
+            page.locator("#close-mobile-first-task").click()
+            context.set_offline(False)
+            page.evaluate(
+                """() => {
+                  document.querySelector('[data-mobile-today-hud]').hidden = false;
+                  localStorage.setItem('stackchain.first-task.v1:timmy', 'coaching');
+                  window.firstTaskOutcomeProbe = createMobileFirstTask({
+                    getLogin: () => 'timmy', hasWork: () => true, isTodayActive: () => true,
+                  });
+                  return window.firstTaskOutcomeProbe.refresh();
+                }"""
+            )
+            coach = page.locator("[data-mobile-first-task-coach]")
+            expect(coach).to_be_visible()
+            expect(coach).to_contain_text("Complete your first task")
+            assert page.evaluate("document.documentElement.scrollWidth <= window.innerWidth")
+            assert page.evaluate("window.firstTaskOutcomeProbe.completeOutcome()") is True
+            expect(page.locator("#mobile-first-task-receipt")).to_be_visible()
+            expect(coach).to_be_hidden()
+            assert page.evaluate("document.documentElement.scrollWidth <= window.innerWidth")
             browser.close()
     finally:
         fake.shutdown()