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

selective-vpn-api/app/traffic_audit_duplicates.go

@@ -0,0 +1,44 @@
+package app
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+)
+
+func findProfileDuplicates(profiles []TrafficAppProfile) []string {
+	return collectTargetKeyDuplicates(func(add func(target, key string)) {
+		for _, p := range profiles {
+			add(p.Target, p.AppKey)
+		}
+	})
+}
+
+func findMarkDuplicates(items []appMarkItem) []string {
+	return collectTargetKeyDuplicates(func(add func(target, key string)) {
+		for _, it := range items {
+			add(it.Target, it.AppKey)
+		}
+	})
+}
+
+func collectTargetKeyDuplicates(feed func(add func(target, key string))) []string {
+	seen := map[string]int{}
+	feed(func(target, key string) {
+		tgt := strings.ToLower(strings.TrimSpace(target))
+		k := strings.TrimSpace(key)
+		if tgt == "" || k == "" {
+			return
+		}
+		seen[tgt+"|"+k]++
+	})
+
+	var out []string
+	for k, n := range seen {
+		if n > 1 {
+			out = append(out, fmt.Sprintf("%s x%d", k, n))
+		}
+	}
+	sort.Strings(out)
+	return out
+}