Align Redis and MinIO connect() idempotency in ConnectionAwareAdapter.

Move shared connect orchestration into the base adapter so both backends short-circuit when already healthy and only reconnect after a failed probe.

Co-authored-by: Cursor <[email protected]>

tests/unit/minio_adapter_test.py

@@ -95,6 +95,27 @@ def test_connect_disconnects_before_reconnect(
     new_client.list_buckets.assert_called_once()
 
 
+def test_connect_skips_reconnect_when_already_connected(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    stale_client = MagicMock(spec=Minio)
+    stale_client.bucket_exists.return_value = True
+    adapter = MinioAdapter(config=TEST_MINIO_CONFIG)
+    adapter._client = stale_client
+    adapter._bucket_name = TEST_MINIO_CONFIG.bucket
+
+    minio_ctor = MagicMock()
+    monkeypatch.setattr(
+        "python_repositories.adapters.minio_adapter.minio.Minio",
+        minio_ctor,
+    )
+
+    adapter.connect()
+
+    minio_ctor.assert_not_called()
+    assert adapter._client is stale_client
+
+
 def test_connect_raises_when_bucket_missing(
     monkeypatch: pytest.MonkeyPatch,
 ) -> None: