feat: implement entity patch

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

src/services/entityService.ts

@@ -25,6 +25,8 @@ import type {
   EntityListStreamRequest,
   EntityListBulkResponse,
   EntityListBulkRequest,
+  EntityPatchResponse,
+  EntityPatchRequest,
 } from '../types/entity';
 import { useIntegrationStore } from '@KTXC/stores/integrationStore';
 import { EntityObject } from '../models';
@@ -150,6 +152,27 @@ export const entityService = {
     return createEntityObject(response);
   },
 
+  /**
+   * Patch existing entities with new properties
+   * 
+   * @param request - patch request parameters
+   * 
+   * @returns Promise with patch results keyed by target entity identifier
+   */
+  async patch(request: EntityPatchRequest): Promise<EntityPatchResponse> {
+    const properties = {
+      '@type': request.properties['@type'] ?? 'mail:message',
+      ...(Object.prototype.hasOwnProperty.call(request.properties, 'flags')
+        ? { flags: request.properties.flags }
+        : {}),
+    }
+
+    return await transceivePost<EntityPatchRequest, EntityPatchResponse>('entity.patch', {
+      ...request,
+      properties,
+    });
+  },
+
   /**
    * Delete entities by their identifiers
    *