restructure: console→client-console, add admin-console skeleton, move docs to doc/

client-console/ui/cron.go

@@ -0,0 +1,16 @@
+package ui
+
+import (
+	_ "embed"
+	"net/http"
+)
+
+//go:embed cron.html
+var cronPage string
+
+func CronHandler() http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		_, _ = w.Write([]byte(cronPage))
+	})
+}