feat(agent): add persistent klogging settings

- Add settings API and UI to toggle keylog
- Persist preference in settings.json
- Expose klogging state in status endpoint
- Inject build version into web console
- Bump version automatically on build

lib/agent/web.go

@@ -1,9 +1,11 @@
 package agent
 
 import (
+	"bytes"
 	"embed"
 	"net/http"
 
+	"tea.chunkbyte.com/kato/go-worm/lib/config"
 	"tea.chunkbyte.com/kato/go-worm/lib/helpers"
 )
 
@@ -33,6 +35,9 @@ func (a *Agent) handleWeb(w http.ResponseWriter, r *http.Request) {
 		helpers.WriteError(w, http.StatusInternalServerError, "ui asset missing")
 		return
 	}
+	if name == "web/index.html" {
+		data = bytes.ReplaceAll(data, []byte("{{VERSION}}"), []byte(config.Version))
+	}
 	w.Header().Set("Content-Type", contentType)
 	w.Header().Set("Cache-Control", "no-cache")
 	_, _ = w.Write(data)