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/plugins/pinia-persist.client.ts

@@ -0,0 +1,41 @@
+import type { Plugin } from "nuxt/app";
+
+/**
+ * Client-side Pinia persistence plugin.
+ * Syncs the cart store to localStorage on every mutation and hydrates on load.
+ */const STORAGE_KEY = "hms-cart";
+
+export default defineNuxtPlugin(({ pinia }) => {
+  // Hydrate from localStorage on plugin load
+  if (import.meta.client) {
+    try {
+      const stored = localStorage.getItem(STORAGE_KEY);
+      if (stored) {
+        const parsed = JSON.parse(stored);
+        if (parsed && Array.isArray(parsed.items)) {
+          const cartStore = pinia._s.get("cart");
+          if (cartStore) {
+            cartStore.$patch({ items: parsed.items });
+          }
+        }
+      }
+    } catch (e) {
+      console.warn("Failed to hydrate cart from localStorage:", e);
+    }
+
+    // Subscribe to cart store changes and persist
+    const cartStore = pinia._s.get("cart");
+    if (cartStore) {
+      cartStore.$subscribe((_mutation, state) => {
+        try {
+          localStorage.setItem(
+            STORAGE_KEY,
+            JSON.stringify({ items: state.items }),
+          );
+        } catch (e) {
+          console.warn("Failed to persist cart to localStorage:", e);
+        }
+      });
+    }
+  }
+}) as Plugin;