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

examples/server_info.rs

@@ -0,0 +1,43 @@
+//! Example: Server information
+//!
+//! This example demonstrates how to check server health and capabilities
+
+use immich_sdk::Client;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Configure the client from environment variables
+    let url = std::env::var("IMMICH_URL").unwrap_or_else(|_| "http://localhost:2283".to_string());
+    let api_key =
+        std::env::var("IMMICH_API_KEY").expect("IMMICH_API_KEY environment variable not set");
+
+    let client = Client::from_url(&url)?.with_api_key(api_key);
+
+    // Health check (ping)
+    println!("Checking server health...");
+    match client.server().ping().await {
+        Ok(response) => println!("Server is healthy! Response: {}", response),
+        Err(e) => println!("Health check failed: {}", e),
+    }
+
+    // Get version
+    println!("\nServer Version:");
+    let version = client.server().version().await?;
+    println!("  Version: {}", version);
+
+    // Get features
+    println!("\nServer Features:");
+    let features = client.server().features().await?;
+    println!("  OAuth enabled: {}", features.oauth);
+    println!("  OAuth auto launch: {}", features.oauth_auto_launch);
+    println!("  Password login: {}", features.password_login);
+    println!("  Config file: {}", features.config_file);
+
+    // Get about info
+    println!("\nServer About:");
+    let about = client.server().about().await?;
+    println!("  Version: {}", about.version);
+    println!("  Version URL: {}", about.version_url);
+
+    Ok(())
+}