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

scripts/run-example.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -e
+
+EXAMPLE=$1
+
+if [ -z "$EXAMPLE" ]; then
+    echo "Usage: $0 <example_name>"
+    echo "Available examples:"
+    ls examples/*.rs | sed 's/examples\///' | sed 's/\.rs$//' | sed 's/^/  - /'
+    exit 1
+fi
+
+# Check if example exists
+if [ ! -f "examples/${EXAMPLE}.rs" ]; then
+    echo "Error: Example 'examples/${EXAMPLE}.rs' not found"
+    exit 1
+fi
+
+cd "$(dirname "$0")/.."
+
+# Start immich if not running
+if ! curl -s http://localhost:2283/api/server/ping > /dev/null 2>&1; then
+    echo "Immich is not running. Starting..."
+    ./scripts/start-immich.sh
+fi
+
+# Seed data if not already done
+if [ ! -f .seeded ]; then
+    echo "Seeding test data..."
+    ./scripts/seed-data.sh
+    touch .seeded
+fi
+
+# Load environment variables
+# set -a exports all variables defined from here on
+set -a
+source .env.test
+set +a
+
+# Run the example
+echo "Running example: $EXAMPLE"
+cargo run --example "$EXAMPLE"