refactor(api): move webui endpoints out of nodes and fix office state updates

pkg/api/reload_unix.go

@@ -0,0 +1,12 @@
+//go:build !windows
+
+package api
+
+import (
+	"os"
+	"syscall"
+)
+
+func requestSelfReloadSignal() error {
+	return syscall.Kill(os.Getpid(), syscall.SIGHUP)
+}

pkg/api/reload_windows.go

@@ -0,0 +1,8 @@
+//go:build windows
+
+package api
+
+// requestSelfReloadSignal is a no-op on Windows (no SIGHUP semantics).
+func requestSelfReloadSignal() error {
+	return nil
+}