docs(idlewatcher): update README to include loading page and SSE endpoint details

- Added information about the loading page (HTML + JS + CSS) and the SSE endpoint for wake events.
- Clarified the health monitor implementation and readiness tracking in the architecture overview.
- Correct state machine syntax.

RELEASE_NOTES.md

@@ -0,0 +1,36 @@
+# GoDoxy v0.24.0 Release Notes
+
+## New
+
+- **Core/Agent**: stream tunneling (TLS/dTLS) with multiplexed TLS port supporting HTTP API and custom stream protocol via ALPN #188
+- **Core/Agent**: TCP and DTLS/UDP stream tunneling with health-check support and runtime capability detection
+- **Core/Router**: TCP/UDP route configurable bind address support
+- **WebUI/Autocert**: multiple certificates display with Carousel component
+- **WebUI/Agent**: stream support status display (TCP/UDP capabilities)
+
+## Changes
+
+- **Core/Agent**: refactored HTTP server to use direct setup instead of goutils/server helper
+- **Core/HealthCheck**: restructured into dedicated `internal/health/check/` package
+- **Core/Dockerfile**: updated to use bun runtime with distroless base images
+- **Core/Compose**: updated agent compose template to expose TCP and UDP ports for stream tunneling
+
+## Fixes
+
+- **Core/Stream**: fixed stream headers with read deadlines to prevent hangs
+- **Core/Icon**: fixed icons provider initialization on first load
+- **Core/Docker**: fixed TLS verification and dial handling for custom Docker providers
+- **Core/Stream**: fixed hostname handling for stream routes
+- **Core/HTTP**: fixed HTTPS redirect for IPv6 with `net.JoinHostPort`
+- **Core/Stream**: fixed remote stream scheme for IPv4 and IPv6 addresses
+- **Core/HealthCheck**: fixed panic on TLS errors during HTTP health checks
+- **Core/Stream**: fixed nil panic for excluded routes
+- **Core/Store**: fixed empty segment handling in nested paths
+
+## Refactoring
+
+- **Core/Agent**: extracted agent pool and HTTP utilities to dedicated package
+- **Core/Route**: improved References method for FQDN alias handling
+- **Core/Icon**: reorganized with health checking and retry logic
+- **Core/Error**: replaced `gperr.Builder` with `gperr.Group` for concurrent error handling
+- **Core/Utils**: removed `internal/utils` entirely, moved `RefCounter` to goutils