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

selective-vpn-api/app/routes_update_helpers.go

@@ -0,0 +1,13 @@
+package app
+
+// ---------------------------------------------------------------------
+// routesUpdate helpers: table identifiers
+// ---------------------------------------------------------------------
+
+func routesTableName() string { return "agvpn" }
+
+// ---------------------------------------------------------------------
+// EN: `routesTableNum` contains core logic for routes table num.
+// RU: `routesTableNum` - содержит основную логику для routes table num.
+// ---------------------------------------------------------------------
+func routesTableNum() string { return "666" }