fix(immich): use thumbnail endpoint instead of original for album carousel (#6396)

* fix(immich): use thumbnail endpoint instead of original for album carousel

Switches from /api/assets/:id/original to /api/assets/:id/thumbnail to fix
HEIC image incompatibility (thumbnails are always JPEG), reduce bandwidth,
and improve loading speed.

Closes #6388

* working on immich

* Improve image proxy error handling

* fix(image-proxy): use trusted fetch response type

* docs(immich): require Asset View permission

packages/integrations/src/immich/immich-integration.ts

@@ -1,4 +1,5 @@
 import {
+  AssetMediaSize,
   getAlbumInfo,
   getAllAlbums,
   getMyUser,
@@ -75,7 +76,9 @@ export class ImmichIntegration extends Integration {
       assets: await Promise.all(
         albumAssets.map(async (asset) => {
           const publicLink = await imageProxy.createImageAsync(
-            this.url(`/api/assets/${asset.id}/original`).toString(),
+            // This is the URL generated by the SDK's viewAsset call. Preview images are
+            // browser-compatible while avoiding the large original asset download.
+            this.url(`/api/assets/${asset.id}/thumbnail`, { size: AssetMediaSize.Preview }).toString(),
             {
               "x-api-key": this.getSecretValue("apiKey"),
             },