feat: add real slskd Soulseek client and opt-in live test

worker/tests/test_soulseek_live.py

@@ -0,0 +1,20 @@
+import os
+
+import pytest
+
+from lyra_worker.adapters._slskd import SlskdClient
+
+pytestmark = pytest.mark.skipif(
+    not (os.environ.get("LYRA_LIVE_TESTS") and os.environ.get("SLSKD_URL") and os.environ.get("SLSKD_API_KEY")),
+    reason="live slskd test; set LYRA_LIVE_TESTS=1 + SLSKD_URL + SLSKD_API_KEY to run",
+)
+
+
+def test_live_search_returns_results():
+    client = SlskdClient({"slskd.url": os.environ["SLSKD_URL"], "slskd.api_key": os.environ["SLSKD_API_KEY"]})
+    results = client.search_album("John Mayer", "Continuum")
+    assert isinstance(results, list)
+    # Soulseek results depend on who's online; assert shape, not count.
+    for r in results:
+        assert r["source_ref"] and r["track_count"] >= 1
+        assert r["format"] in ("FLAC", "MP3")