add playwright e2e tests for onboarding, contact tracker

- install playwright, configure for chromium with vite dev server
- add onboarding flow test: redirect, form fill, navigation to prozess
- add contact tracker test: create contact, verify in list
- fix onboarding form navigating to /onboarding instead of /prozess
- fix date rendering crash in contact list (cast datum to text)
- exclude @electric-sql/pglite from vite optimizeDeps (WASM bundle)
- add test-results/, playwright-report/ to .gitignore

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

e2e/kontakte.spec.ts

@@ -0,0 +1,29 @@
+import { expect, test } from "@playwright/test";
+
+test.beforeEach(async ({ page }) => {
+	await page.goto("/onboarding");
+	// Wait for PGlite to initialize and the form to render
+	await page.getByLabel("Name").waitFor({ timeout: 15000 });
+
+	await page.getByLabel("Name").fill("Test User");
+	await page.getByLabel("PLZ").fill("10115");
+	await page.getByLabel("Ort").fill("Berlin");
+	await page.getByLabel("Krankenkasse").fill("TK");
+	await page.getByRole("button", { name: "Weiter" }).click();
+	await expect(page).toHaveURL(/prozess/, { timeout: 10000 });
+});
+
+test("add a new contact and see it in the list", async ({ page }) => {
+	await page.getByRole("link", { name: "Kontakte" }).click();
+	await expect(page).toHaveURL(/kontakte/);
+
+	await page.getByRole("link", { name: /Neu/ }).click();
+	await expect(page).toHaveURL(/kontakte\/neu/);
+
+	await page.getByLabel("Name", { exact: false }).first().fill("Dr. Schmidt");
+	await page.getByLabel("Stadt").fill("Berlin");
+	await page.getByRole("button", { name: "Speichern" }).click();
+
+	await expect(page).toHaveURL(/\/kontakte$/, { timeout: 10000 });
+	await expect(page.getByText("Dr. Schmidt")).toBeVisible({ timeout: 10000 });
+});

e2e/onboarding.spec.ts

@@ -0,0 +1,18 @@
+import { expect, test } from "@playwright/test";
+
+test("onboarding flow redirects new user and saves profile", async ({
+	page,
+}) => {
+	await page.goto("/");
+	// PGlite WASM initialization takes time; wait for the redirect to complete
+	await expect(page).toHaveURL(/onboarding/, { timeout: 15000 });
+
+	await page.getByLabel("Name").fill("Max Mustermann");
+	await page.getByLabel("PLZ").fill("10115");
+	await page.getByLabel("Ort").fill("Berlin");
+	await page.getByLabel("Krankenkasse").fill("TK");
+	await page.getByRole("button", { name: "Weiter" }).click();
+
+	await expect(page).toHaveURL(/prozess/, { timeout: 10000 });
+	await expect(page.getByText("Dein Fortschritt")).toBeVisible();
+});