dashboard improvements (#896)

- Feature: Added Workspaces dashboard page with HTTP request stats and per-workspace metrics
- Feature: Added Build Storage dashboard page with service-specific HTTP request stats
- Improvement: Front page now shows Hub and Object Store activity tiles; HTTP panel is fixed above the tiles grid
- Improvement: HTTP stats tiles now include 5m/15m rates and p999/max latency across all service pages

1 files changed, 12 insertions, 5 deletions

diff --git a/src/zenserver/storage/objectstore/objectstore.cpp b/src/zenserver/storage/objectstore/objectstore.cpp
index dec0c3cee..d6516fa1a 100644
--- a/src/zenserver/storage/objectstore/objectstore.cpp
+++ b/src/zenserver/storage/objectstore/objectstore.cpp
@@ -226,7 +226,7 @@ HttpObjectStoreService::HttpObjectStoreService(HttpStatsService& StatsService, H
 , m_StatusService(StatusService)
 , m_Cfg(std::move(Cfg))
 {
-	Inititalize();
+	Initialize();
 	m_StatsService.RegisterHandler("obj", *this);
 	m_StatusService.RegisterHandler("obj", *this);
 }
@@ -266,12 +266,19 @@ HttpObjectStoreService::HandleStatusRequest(HttpServerRequest& Request)
 void
 HttpObjectStoreService::HandleStatsRequest(HttpServerRequest& Request)
 {
+	Request.WriteResponse(HttpResponseCode::OK, CollectStats());
+}
+
+CbObject
+HttpObjectStoreService::CollectStats()
+{
+	ZEN_TRACE_CPU("HttpObjectStoreService::Stats");
 	CbObjectWriter Cbo;
 
 	EmitSnapshot("requests", m_HttpRequests, Cbo);
 	Cbo << "total_bytes_served" << m_TotalBytesServed.load();
 
-	Request.WriteResponse(HttpResponseCode::OK, Cbo.Save());
+	return Cbo.Save();
 }
 
 uint64_t
@@ -281,12 +288,12 @@ HttpObjectStoreService::GetActivityCounter()
 }
 
 void
-HttpObjectStoreService::Inititalize()
+HttpObjectStoreService::Initialize()
 {
-	ZEN_TRACE_CPU("HttpObjectStoreService::Inititalize");
+	ZEN_TRACE_CPU("HttpObjectStoreService::Initialize");
 
 	namespace fs = std::filesystem;
-	ZEN_LOG_INFO(LogObj, "Initialzing Object Store in '{}'", m_Cfg.RootDirectory);
+	ZEN_LOG_INFO(LogObj, "Initializing Object Store in '{}'", m_Cfg.RootDirectory);
 
 	const fs::path BucketsPath = m_Cfg.RootDirectory / "buckets";
 	if (!IsDir(BucketsPath))