plan(SP22): Task 3 review fix — get_logger returns BoundLoggerLazyProxy, not BoundLogger

The verbatim plan's test asserted isinstance(log, structlog.stdlib.BoundLogger),
but cache_logger_on_first_use=True makes get_logger return a lazy proxy on
first call. Test now uses duck-typing (hasattr('bind') + callable). Also
dropped the misleading caplog assertion and unused logging/structlog imports.

docs/superpowers/plans/2026-06-21-cyclone-pipeline-agent.md

@@ -501,16 +501,9 @@ def captured_stderr(monkeypatch):
     buf.write(sys.stderr.getvalue() if hasattr(sys.stderr, "getvalue") else "")
 
 
-def test_setup_logging_emits_json(caplog):
+def test_setup_logging_emits_json():
     """After setup_logging, log records render as one JSON object per line
-    with the keys cyclone uses (ts, level, logger, msg, extra)."""
-    setup_logging(level="INFO")
-    log = get_logger("cyclone_pipeline.test")
-    log.info("hello", claim_id="CLM-1")
-    captured = caplog.text
-    assert "hello" in captured
-    # The structlog JSON renderer writes to stderr, not caplog by default.
-    # Use a direct capture:
+    on stderr with the keys cyclone uses (event, level, timestamp, plus kwargs)."""
     import sys
     real = sys.stderr
     sys.stderr = io.StringIO()
@@ -531,8 +524,10 @@ def test_setup_logging_emits_json(caplog):
 
 def test_get_logger_returns_named_logger():
     log = get_logger("foo.bar")
-    assert isinstance(log, structlog.stdlib.BoundLogger)
-    assert log.bind is not None
+    # cache_logger_on_first_use=True returns a BoundLoggerLazyProxy on first
+    # call; the contract is that .bind is callable, not the concrete class.
+    assert hasattr(log, "bind")
+    assert callable(log.bind)
 ```
 
 - [ ] **Step 2: Run test to verify it fails**