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

selective-vpn-api/app/transport_singbox_profiles_flow_history.go

@@ -0,0 +1,46 @@
+package app
+
+import (
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+func handleTransportSingBoxProfileHistory(w http.ResponseWriter, r *http.Request, id string) {
+	if r.Method != http.MethodGet {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	limit := 50
+	if s := strings.TrimSpace(r.URL.Query().Get("limit")); s != "" {
+		if n, err := strconv.Atoi(s); err == nil && n > 0 {
+			if n > 500 {
+				n = 500
+			}
+			limit = n
+		}
+	}
+
+	records, err := loadSingBoxHistoryRecords(id, limit)
+	if err != nil {
+		writeJSON(w, http.StatusInternalServerError, SingBoxProfileHistoryResponse{
+			OK:        false,
+			Code:      singBoxProfileCodeRollbackFailed,
+			Message:   "history read failed: " + err.Error(),
+			ProfileID: id,
+		})
+		return
+	}
+	items := make([]SingBoxProfileHistoryEntry, 0, len(records))
+	for _, it := range records {
+		items = append(items, it.Public())
+	}
+	writeJSON(w, http.StatusOK, SingBoxProfileHistoryResponse{
+		OK:        true,
+		Message:   "ok",
+		ProfileID: id,
+		Count:     len(items),
+		Items:     items,
+	})
+}