Add usage commands, a vendor-neutral usage format and a knowledge base

internal/server/server.go

@@ -632,6 +632,24 @@ func (s *Server) CheckPermissions(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, perms)
 }
 
+func (s *Server) GetUsageCommands(w http.ResponseWriter, r *http.Request) {
+	writeJSON(w, http.StatusOK, s.agents.UsageCommands())
+}
+
+func (s *Server) UpdateUsageCommands(w http.ResponseWriter, r *http.Request) {
+	req := api.UsageCommands{}
+	if !readJSON(w, r, &req) {
+		return
+	}
+
+	err := s.agents.SetUsageCommands(r.Context(), actor(r), req)
+	if err != nil {
+		writeStoreError(w, err)
+		return
+	}
+	writeJSON(w, http.StatusOK, s.agents.UsageCommands())
+}
+
 func (s *Server) status(ctx context.Context) (api.Status, error) {
 	c, err := s.store.Counts(ctx)
 	if err != nil {