Füge Cypress Konfiguration und Testumgebung hinzu

- Fügt cypress.config.ts für E2E und Komponenten Tests hinzu
- Fügt Cypress Testskripte und Docker-Compose Konfiguration hinzu
- Ermöglicht automatische E2E-Tests mit separater Testumgebung

🤖 Generated with [Claude Code](https://claude.ai/code)

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

packages/reservation-platform/cypress/support/commands.ts

@@ -0,0 +1,33 @@
+// -- This is a parent command --
+Cypress.Commands.add('login', () => {
+  // Simulate logged in user without OAuth
+  window.localStorage.setItem('myp:user', JSON.stringify({
+    id: 'test-user-id',
+    name: 'Test User',
+    email: 'test@example.com',
+    role: 'user'
+  }))
+})
+
+// -- This is a child command --
+Cypress.Commands.add('createPrintJob', (printerId, duration) => {
+  cy.intercept('POST', `/api/printers/${printerId}/reserve`, {
+    id: 'test-job-id',
+    printerId,
+    userId: 'test-user-id',
+    startTime: new Date().toISOString(),
+    endTime: new Date(Date.now() + duration * 60000).toISOString(),
+    status: 'active'
+  }).as('createJob')
+
+  return cy.wrap('test-job-id')
+})
+
+declare global {
+  namespace Cypress {
+    interface Chainable {
+      login(): Chainable<void>
+      createPrintJob(printerId: string, duration: number): Chainable<string>
+    }
+  }
+}