Add shared Manifest UI for delivery, quote, and order.

Wire quote/order API clients and routes, then unify list/create/edit behind ManifestList/Form tiles so Lieferungen and Auftrag share one stack.

src/api/ApiClient.js

@@ -95,6 +95,32 @@ export class ApiClient {
       delete: (id) => this.#empty('DELETE', `/api/delivery/${enc(id)}`),
     };
 
+    this.quote = {
+      /** GET /api/quote → { quotes } */
+      list: () => this.#json('GET', '/api/quote'),
+      /** GET /api/quote/{id} → { quote } */
+      get: (id) => this.#json('GET', `/api/quote/${enc(id)}`),
+      /** POST /api/quote → 201 { quote } */
+      create: (body) => this.#json('POST', '/api/quote', { body }),
+      /** PATCH /api/quote/{id} → { quote } */
+      update: (id, body) => this.#json('PATCH', `/api/quote/${enc(id)}`, { body }),
+      /** DELETE /api/quote/{id} → 204 */
+      delete: (id) => this.#empty('DELETE', `/api/quote/${enc(id)}`),
+    };
+
+    this.order = {
+      /** GET /api/order → { orders } */
+      list: () => this.#json('GET', '/api/order'),
+      /** GET /api/order/{id} → { order } */
+      get: (id) => this.#json('GET', `/api/order/${enc(id)}`),
+      /** POST /api/order → 201 { order } */
+      create: (body) => this.#json('POST', '/api/order', { body }),
+      /** PATCH /api/order/{id} → { order } */
+      update: (id, body) => this.#json('PATCH', `/api/order/${enc(id)}`, { body }),
+      /** DELETE /api/order/{id} → 204 */
+      delete: (id) => this.#empty('DELETE', `/api/order/${enc(id)}`),
+    };
+
     this.customergroup = {
       /** GET /api/customergroup → { customergroups } */
       list: () => this.#json('GET', '/api/customergroup'),