Dashboard overhaul, compute integration (#814)

- **Frontend dashboard overhaul**: Unified compute/main dashboards into a single shared UI. Added new pages for cache, projects, metrics, sessions, info (build/runtime config, system stats). Added live-update via WebSockets with pause control, sortable detail tables, themed styling. Refactored compute/hub/orchestrator pages into modular JS.
- **HTTP server fixes and stats**: Fixed http.sys local-only fallback when default port is in use, implemented root endpoint redirect for http.sys, fixed Linux/Mac port reuse. Added /stats endpoint exposing HTTP server metrics (bytes transferred, request rates). Added WebSocket stats tracking.
- **OTEL/diagnostics hardening**: Improved OTLP HTTP exporter with better error handling and resilience. Extended diagnostics services configuration.
- **Session management**: Added new sessions service with HTTP endpoints for registering, updating, querying, and removing sessions. Includes session log file support. This is still WIP.
- **CLI subcommand support**: Added support for commands with subcommands in the zen CLI tool, with improved command dispatch.
- **Misc**: Exposed CPU usage/hostname to frontend, fixed JS compact binary float32/float64 decoding, limited projects displayed on front page to 25 sorted by last access, added vscode:// link support.

Also contains some fixes from TSAN analysis.

1 files changed, 17 insertions, 1 deletions

diff --git a/src/zenhttp/servers/wsasio.cpp b/src/zenhttp/servers/wsasio.cpp
index 3e31b58bc..b2543277a 100644
--- a/src/zenhttp/servers/wsasio.cpp
+++ b/src/zenhttp/servers/wsasio.cpp
@@ -4,6 +4,7 @@
 #include "wsframecodec.h"
 
 #include <zencore/logging.h>
+#include <zenhttp/httpserver.h>
 
 namespace zen::asio_http {
 
@@ -16,15 +17,20 @@ WsLog()
 
 //////////////////////////////////////////////////////////////////////////
 
-WsAsioConnection::WsAsioConnection(std::unique_ptr<asio::ip::tcp::socket> Socket, IWebSocketHandler& Handler)
+WsAsioConnection::WsAsioConnection(std::unique_ptr<asio::ip::tcp::socket> Socket, IWebSocketHandler& Handler, HttpServer* Server)
 : m_Socket(std::move(Socket))
 , m_Handler(Handler)
+, m_HttpServer(Server)
 {
 }
 
 WsAsioConnection::~WsAsioConnection()
 {
 	m_IsOpen.store(false);
+	if (m_HttpServer)
+	{
+		m_HttpServer->OnWebSocketConnectionClosed();
+	}
 }
 
 void
@@ -101,6 +107,11 @@ WsAsioConnection::ProcessReceivedData()
 
 		m_ReadBuffer.consume(Frame.BytesConsumed);
 
+		if (m_HttpServer)
+		{
+			m_HttpServer->OnWebSocketFrameReceived(Frame.BytesConsumed);
+		}
+
 		switch (Frame.Opcode)
 		{
 			case WebSocketOpcode::kText:
@@ -219,6 +230,11 @@ WsAsioConnection::DoClose(uint16_t Code, std::string_view Reason)
 void
 WsAsioConnection::EnqueueWrite(std::vector<uint8_t> Frame)
 {
+	if (m_HttpServer)
+	{
+		m_HttpServer->OnWebSocketFrameSent(Frame.size());
+	}
+
 	bool ShouldFlush = false;
 
 	m_WriteLock.WithExclusiveLock([&] {