mavend: an unconfigured capability names the gap (V-479)

Netscan and the crawler both declined their own turn when the wiring was
nil, and the question fell through to the search leg. "какие устройства в
сети?" came back as a paragraph about routers in general, and a question
about his own LAN went to an upstream engine — the personal boundary
exists to stop exactly that. A URL he named came back answered as though
he had not named it.

Both now claim the turn once their own recogniser has matched, and say
which capability is missing: net_off and page_off in the query family.

TestQueryWebPassesWhenNotConfigured encoded the old decision, that
announcing a configuration status is only for a capability that exists and
failed. It is rewritten, not deleted: the gap is the answer now.

internal/phraser/query.go

@@ -45,6 +45,8 @@ const (
 	QueryWeatherOff   = "weather_off"
 	QueryWeatherWhere = "weather_nolocation"
 	QueryNetEmpty     = "net_empty"
+	QueryNetOff       = "net_off"
+	QueryPageOff      = "page_off"
 
 	QueryFailPlan     = "fail_plan"
 	QueryFailNotes    = "fail_notes"
@@ -60,7 +62,7 @@ var queryKeys = []string{
 	QueryUnknown, QueryOtherDay, QueryPersonalNone, QueryFactWhen, QueryFactValue,
 	QueryFound, QueryPageText, QueryPageBlocked, QueryPageEmpty,
 	QueryFeedsOff, QueryFeedsNew, QueryFeedsEmpty, QueryFeedsTopic,
-	QueryWeatherNow, QueryWeatherOff, QueryWeatherWhere, QueryNetEmpty,
+	QueryWeatherNow, QueryWeatherOff, QueryWeatherWhere, QueryNetEmpty, QueryNetOff, QueryPageOff,
 	QueryFailPlan, QueryFailNotes, QueryFailFeeds, QueryFailCalendar,
 	QueryFailWeather, QueryFailAnswer, QueryFailPage, QueryFailNetscan,
 }
@@ -85,6 +87,8 @@ var queryFloor = say.RegisterFloor(map[string]string{
 	QueryWeatherOff:   "погода не настроена.",
 	QueryWeatherWhere: "не знаю, для какого города — задай voice.weather.default_location или назови город.",
 	QueryNetEmpty:     "в сети никого не нашла{tail}.",
+	QueryNetOff:       "сканирование сети не настроено.",
+	QueryPageOff:      "я не читаю страницы — это не настроено.",
 
 	QueryFailPlan:     "не получилось собрать план.",
 	QueryFailNotes:    "не получилось посмотреть записи.",

internal/phraser/query_ru_v1.json

@@ -62,6 +62,14 @@
       "fixed": true,
       "variants": ["не знаю, для какого города — задай voice.weather.default_location или назови город."]
     },
+    "net_off": {
+      "fixed": true,
+      "variants": ["сканирование сети не настроено."]
+    },
+    "page_off": {
+      "fixed": true,
+      "variants": ["я не читаю страницы — это не настроено."]
+    },
     "net_empty": {
       "variants": ["в сети никого не нашла{tail}.", "никого в сети не видно{tail}."]
     },