platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

selective-vpn-api/app/traffic_appmarks_handlers_post.go

@@ -0,0 +1,35 @@
+package app
+
+import (
+	"net/http"
+)
+
+func handleTrafficAppMarksPost(w http.ResponseWriter, r *http.Request) {
+	in, badReqMessage := decodeTrafficAppMarksPostInput(r)
+	if badReqMessage != "" {
+		http.Error(w, badReqMessage, http.StatusBadRequest)
+		return
+	}
+
+	if err := ensureAppMarksNft(); err != nil {
+		writeJSON(w, http.StatusOK, TrafficAppMarksResponse{
+			OK:      false,
+			Op:      string(in.Op),
+			Target:  in.Target,
+			Cgroup:  in.Cgroup,
+			Message: "nft init failed: " + err.Error(),
+		})
+		return
+	}
+
+	switch in.Op {
+	case TrafficAppMarksAdd:
+		writeJSON(w, http.StatusOK, executeTrafficAppMarksAdd(in))
+	case TrafficAppMarksDel:
+		writeJSON(w, http.StatusOK, executeTrafficAppMarksDelete(in))
+	case TrafficAppMarksClear:
+		writeJSON(w, http.StatusOK, executeTrafficAppMarksClear(in))
+	default:
+		http.Error(w, "unknown op", http.StatusBadRequest)
+	}
+}