feat: wire adapter registry into worker loop

worker/lyra_worker/main.py

@@ -3,13 +3,14 @@ import time
 from lyra_worker.claim import claim_next
 from lyra_worker.db import wait_for_db
 from lyra_worker.pipeline import run_pipeline
+from lyra_worker.registry import build_adapters
 
 IDLE_SLEEP = 2.0
-STAGE_DELAY = 1.0  # visible progress in the UI
 
 
 def run_forever() -> None:
     conn = wait_for_db()
+    adapters = build_adapters()
     print("worker: waiting for jobs", flush=True)
     try:
         while True:
@@ -18,8 +19,8 @@ def run_forever() -> None:
                 time.sleep(IDLE_SLEEP)
                 continue
             print(f"worker: claimed job {job_id}", flush=True)
-            run_pipeline(conn, job_id, stage_delay=STAGE_DELAY)
-            print(f"worker: imported job {job_id}", flush=True)
+            run_pipeline(conn, job_id, adapters)
+            print(f"worker: finished job {job_id}", flush=True)
     finally:
         conn.close()
 

worker/lyra_worker/registry.py

@@ -0,0 +1,11 @@
+from lyra_worker.adapters.base import SourceAdapter
+from lyra_worker.adapters.fakes import FakeQobuz, FakeSoulseek, FakeYouTube
+
+
+def build_adapters() -> list[SourceAdapter]:
+    """The enabled source adapters, best-tier first.
+
+    SWAP POINT: Plan 3 replaces these fakes with real Qobuz/Soulseek/YouTube
+    adapters (reading credentials from config). Nothing else in the pipeline changes.
+    """
+    return [FakeQobuz(), FakeSoulseek(), FakeYouTube()]

worker/tests/test_registry.py

@@ -0,0 +1,9 @@
+from lyra_worker.registry import build_adapters
+
+
+def test_registry_returns_the_three_fake_sources():
+    adapters = build_adapters()
+    names = sorted(a.name for a in adapters)
+    assert names == ["qobuz", "soulseek", "youtube"]
+    for a in adapters:
+        assert a.health() is True