feat(streamhub): BinaryRecorder core (header, encode, rows, flush, rotation)

Add a FileWriter-compatible per-source binary recorder: native-type encode
and TypeDescriptor mapping, FileWriter header serialization, subset/quantized/
ACCUMULATE row serialization, and push-thread double-buffer flush with size-cap
rotation, keep-N pruning, fdatasync cadence, disk-free and staging-overflow
guards. Covered by 12 GTests; full suite (83) green.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Test/Applications/StreamHub/BinaryRecorderSrc.cpp

@@ -0,0 +1,19 @@
+/**
+ * @file BinaryRecorderSrc.cpp
+ * @brief Compiles the StreamHub BinaryRecorder implementation into the test
+ * library (StreamHub builds an executable, not a linkable archive).
+ *
+ * @copyright Copyright 2015 F4E | European Joint Undertaking for ITER and
+ * the Development of Fusion Energy ('Fusion for Energy').
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved
+ * by the European Commission - subsequent versions of the EUPL (the "Licence")
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at: http://ec.europa.eu/idabc/eupl
+ *
+ * @warning Unless required by applicable law or agreed to in writing,
+ * software distributed under the Licence is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the Licence permissions and limitations under the Licence.
+ */
+
+#include "../../../Source/Applications/StreamHub/BinaryRecorder.cpp"