Merge branch 'main' into sb/zen-helpsb/zen-help

- Combine HelpCommand (this branch) with HistoryCommand (main) in zen CLI dispatcher
- Keep filter-aware TuiPickOne rewrite; adopt main's ASCII arrow glyphs in doc comment

1 files changed, 20 insertions, 0 deletions

diff --git a/src/zenstore/zenstore.cpp b/src/zenstore/zenstore.cpp
index c563cc202..bf0c71211 100644
--- a/src/zenstore/zenstore.cpp
+++ b/src/zenstore/zenstore.cpp
@@ -2,6 +2,26 @@
 
 #include "zenstore/zenstore.h"
 
+#include <zencore/iobuffer.h>
+
+namespace zen {
+
+FallbackChunkResolver::FallbackChunkResolver(ChunkResolver& Primary, ChunkResolver& Fallback) : m_Primary(Primary), m_Fallback(Fallback)
+{
+}
+
+IoBuffer
+FallbackChunkResolver::FindChunkByCid(const IoHash& DecompressedId)
+{
+	if (IoBuffer Result = m_Primary.FindChunkByCid(DecompressedId))
+	{
+		return Result;
+	}
+	return m_Fallback.FindChunkByCid(DecompressedId);
+}
+
+}  // namespace zen
+
 #if ZEN_WITH_TESTS
 
 #	include <zenstore/blockstore.h>