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/unit/ReferenzenPage.test.ts

@@ -0,0 +1,53 @@
+import { describe, it, expect } from "vitest";
+import { readFileSync } from "node:fs";
+import { resolve } from "node:path";
+
+describe("Referenzen Page (prototype port)", () => {
+  const pagePath = resolve(__dirname, "../../pages/referenzen.vue");
+  const content = readFileSync(pagePath, "utf-8");
+
+  it("should have page title Referenzen", () => {
+    expect(content).toContain("Referenzen");
+  });
+
+  it("should have hms-gallery grid", () => {
+    expect(content).toContain("hms-gallery");
+  });
+
+  it("should have 9 reference images", () => {
+    expect(content).toContain("ref1.jpg");
+    expect(content).toContain("ref9.jpg");
+  });
+
+  it("should have category filter chips with hms-chip", () => {
+    expect(content).toContain("hms-chip");
+    expect(content).toContain("Alle");
+    expect(content).toContain("Open-Air");
+    expect(content).toContain("Indoor");
+    expect(content).toContain("Rigging");
+    expect(content).toContain("Event");
+  });
+
+  it("should have filter logic with computed filteredImages", () => {
+    expect(content).toContain("filteredImages");
+    expect(content).toContain("filter");
+    expect(content).toContain("computed");
+  });
+
+  it("should have loading skeleton state", () => {
+    expect(content).toContain("hms-skeleton");
+    expect(content).toContain("loading");
+  });
+
+  it("should use ErrorState component", () => {
+    expect(content).toContain("ErrorState");
+  });
+
+  it("should use EmptyState component", () => {
+    expect(content).toContain("EmptyState");
+  });
+
+  it("should use TypeScript with lang=ts", () => {
+    expect(content).toContain('<script setup lang="ts">');
+  });
+});