feat: add MCP server with resources, tools, auth, and Traefik routing

- Add backend/app/mcp_server.py with FastMCP server (hms-cms)
- Resources: design-rules, page-structure, sync-status
- Tools: trigger_sync, get_sync_log, set_rentman_token, read_file,
  write_file, create_page, deploy, git_commit, git_status
- Bearer token auth via MCP_AUTH_TOKEN env var
- Mount MCP at /mcp with streamable HTTP transport
- Integrate session manager in FastAPI lifespan
- Add Traefik labels for external /mcp route on hms.media-on.de
- Add git, docker.io, curl to backend Dockerfile
- Mount repo root + docker socket in backend container
- Add mcp>=1.0.0 to requirements.txt

frontend-nuxt-old/tests/e2e/mietanfrage.spec.ts

@@ -0,0 +1,27 @@
+import { test, expect } from "@playwright/test";
+
+test.describe("Mietanfrage Page", () => {
+  test("should render mietanfrage page with heading", async ({ page }) => {
+    await page.goto("/mietanfrage");
+    await expect(page.locator("h1")).toContainText("Mietanfrage");
+  });
+
+  test("should show empty cart state when no items in cart", async ({ page }) => {
+    await page.goto("/mietanfrage");
+    await expect(page.getByTestId("mietanfrage-empty-cart")).toBeVisible();
+  });
+
+  test("should have link to mietkatalog from empty cart state", async ({ page }) => {
+    await page.goto("/mietanfrage");
+    const cta = page.getByTestId("mietanfrage-empty-cta");
+    await expect(cta).toBeVisible();
+    await expect(cta).toHaveAttribute("href", "/mietkatalog");
+  });
+
+  test("should have breadcrumb with warenkorb link", async ({ page }) => {
+    await page.goto("/mietanfrage");
+    const breadcrumb = page.locator('nav[aria-label="Breadcrumb"]');
+    await expect(breadcrumb).toBeVisible();
+    await expect(breadcrumb.locator('a[href="/warenkorb"]')).toBeVisible();
+  });
+});