Various bug fixes (#778)

zencore fixes:
- filesystem.cpp: ReadFile error reporting logic
- compactbinaryvalue.h: CbValue::As*String error reporting logic

zenhttp fixes:
- httpasio BindAcceptor would `return 0;` in a function returning `std::string` (UB)
- httpsys async workpool initialization race

zenstore fixes:
- cas.cpp: GetFileCasResults Results param passed by value instead of reference (large chunk results were silently lost)
- structuredcachestore.cpp: MissCount unconditionally incremented (counted hits as misses)
- cacherpc.cpp: Wrong boolean in Incomplete response array (all entries marked incomplete)
- cachedisklayer.cpp: sizeof(sizeof(...)) in two validation checks computed sizeof(size_t) instead of struct size
- buildstore.cpp: Wrong hash tracked in GC key list (BlobHash pushed twice instead of MetadataHash)
- buildstore.cpp: Removed duplicate m_LastAccessTimeUpdateCount increment in PutBlob

zenserver fixes:
- httpbuildstore.cpp: Reversed subtraction in HTTP range calculation (unsigned underflow)
- hubservice.cpp: Deadlock in Provision() calling Wake() while holding m_Lock (extracted WakeLocked helper)
- zipfs.cpp: Data race in GetFile() lazy initialization (added RwLock with shared/exclusive paths)

1 files changed, 1 insertions, 2 deletions

diff --git a/src/zenstore/buildstore/buildstore.cpp b/src/zenstore/buildstore/buildstore.cpp
index 04a0781d3..aa37e75fe 100644
--- a/src/zenstore/buildstore/buildstore.cpp
+++ b/src/zenstore/buildstore/buildstore.cpp
@@ -266,13 +266,12 @@ BuildStore::PutBlob(const IoHash& BlobHash, const IoBuffer& Payload)
 			m_BlobLookup.insert({BlobHash, NewBlobIndex});
 		}
 
-		m_LastAccessTimeUpdateCount++;
 		if (m_TrackedBlobKeys)
 		{
 			m_TrackedBlobKeys->push_back(BlobHash);
 			if (MetadataHash != IoHash::Zero)
 			{
-				m_TrackedBlobKeys->push_back(BlobHash);
+				m_TrackedBlobKeys->push_back(MetadataHash);
 			}
 		}
 	}