feat: add unit tests for models and ListStore and UI test for adding a todo

MindDumpUITests/MindDumpUITests.swift

@@ -0,0 +1,52 @@
+import XCTest
+
+final class MindDumpUITests: XCTestCase {
+
+    override func setUpWithError() throws {
+        continueAfterFailure = false
+    }
+
+    /// Tapping the MindDumpButton, entering a title and saving should show the entry in the list
+    @MainActor
+    func testQuickDump_createsEntry() throws {
+        let app = XCUIApplication()
+        app.launchArguments = ["UI_TESTING"]
+        app.launch()
+
+        // Tap the MindDumpButton button
+        app.buttons["🧠"].tap()
+
+        // Type a title in the editor sheet
+        let titleField = app.textFields["Titel"]
+        XCTAssertTrue(titleField.waitForExistence(timeout: 2))
+        titleField.typeText("UI Test Eintrag")
+
+        // Add a note
+        app.buttons["Notiz"].tap()
+        let noteField = app.textFields["Notiz hinzufügen..."]
+        XCTAssertTrue(noteField.waitForExistence(timeout: 2))
+        noteField.tap()
+        noteField.typeText("Wichtige Notiz")
+
+        // Add high priority — tap the add-field button, then the picker row, then the option
+        app.buttons["Priorität"].tap()
+        app.buttons["Priorität, 🟡 Mittel"].tap()
+        app.buttons["🔴 Hoch"].tap()
+
+        // Tap "Fertig" to save
+        app.buttons["Fertig"].tap()
+
+        // Navigate into Inbox to see the entry
+        app.staticTexts["Inbox"].tap()
+
+        // Verify the entry appears in the list
+        let entryExists = app.descendants(matching: .any)["UI Test Eintrag"].waitForExistence(timeout: 3)
+        XCTAssertTrue(entryExists, "Entry title should be visible")
+
+        // Verify the note snippet is shown below the title
+        XCTAssertTrue(app.descendants(matching: .any)["Wichtige Notiz"].exists, "Note should be visible")
+
+        // Verify the red priority dot is shown
+        XCTAssertTrue(app.images["circle.fill"].exists, "Priority dot should be visible")
+    }
+}