Add integration testing infrastructure with Podman Compose

- Add docker/podman-compose.yml for Immich server (no ML)
- Add test-data/sample-photos/ with 3 public domain images
- Add scripts/start-immich.sh for container startup + admin/API key creation
- Add scripts/seed-data.sh for uploading test photos and creating albums
- Add scripts/stop-immich.sh for cleanup with volume destruction
- Add scripts/run-example.sh wrapper (fixed env var export)
- Update examples to use IMMICH_URL and IMMICH_API_KEY env vars
- Add .github/workflows/integration-test.yml for CI
- Update assets.list() to use /search/metadata endpoint
- Update AGENTS.md with example running instructions
- Add 5 new examples: search_metadata, album_management, timeline_browsing,
  delete_assets, server_info

src/apis/assets.rs

@@ -6,7 +6,7 @@ use std::path::Path;
 use crate::{
     Client,
     error::{ImmichError, Result},
-    models::{AssetId, AssetMediaSize, AssetResponse, AssetUploadResponse, DeleteAssetsRequest},
+    models::{AssetId, AssetMediaSize, AssetResponse, AssetUploadResponse, DeleteAssetsRequest, MetadataSearchRequest, SearchResponse},
 };
 
 /// Response from downloading a thumbnail containing image data and metadata
@@ -160,24 +160,26 @@ impl ListAssetsBuilder {
 
     /// Execute the request
     pub async fn execute(self) -> Result<Vec<AssetResponse>> {
-        let mut req = self.client.get("/assets");
+        let req = self.client.post("/search/metadata");
+        
+        let mut body = MetadataSearchRequest::default();
 
         if let Some(album_id) = self.album_id {
-            req = req.query(&[("albumId", album_id.to_string())]);
+            body.album_ids = Some(vec![album_id]);
         }
 
         if let Some(is_favorite) = self.is_favorite {
-            req = req.query(&[("isFavorite", is_favorite.to_string())]);
+            body.is_favorite = Some(is_favorite);
         }
 
         if let Some(is_trashed) = self.is_trashed {
-            req = req.query(&[("isTrashed", is_trashed.to_string())]);
+            body.with_deleted = Some(is_trashed);
         }
 
-        let response = self.client.execute(req.build()?).await?;
-        let assets: Vec<AssetResponse> = response.json().await?;
+        let response = self.client.execute(req.json(&body).build()?).await?;
+        let search_result: SearchResponse = response.json().await?;
 
-        Ok(assets)
+        Ok(search_result.assets.items)
     }
 }