feat: add offline library statistics

open-api/immich-openapi-specs.json

@@ -18264,6 +18264,11 @@
       },
       "LibraryStatsResponseDto": {
         "properties": {
+          "offline": {
+            "default": 0,
+            "description": "Number of offline assets",
+            "type": "integer"
+          },
           "photos": {
             "default": 0,
             "description": "Number of photos",
@@ -18287,6 +18292,7 @@
           }
         },
         "required": [
+          "offline",
           "photos",
           "total",
           "usage",

open-api/typescript-sdk/src/fetch-client.ts

@@ -1323,6 +1323,8 @@ export type UpdateLibraryDto = {
     name?: string;
 };
 export type LibraryStatsResponseDto = {
+    /** Number of offline assets */
+    offline: number;
     /** Number of photos */
     photos: number;
     /** Total number of assets */