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

selective-vpn-api/app/traffic_appmarks_ops.go

@@ -0,0 +1,23 @@
+package app
+
+import (
+	"strings"
+)
+
+func appMarksGetStatus() (vpnCount int, directCount int) {
+	_ = pruneExpiredAppMarks()
+
+	appMarksMu.Lock()
+	defer appMarksMu.Unlock()
+
+	st := loadAppMarksState()
+	for _, it := range st.Items {
+		switch strings.ToLower(strings.TrimSpace(it.Target)) {
+		case "vpn":
+			vpnCount++
+		case "direct":
+			directCount++
+		}
+	}
+	return vpnCount, directCount
+}