phraser: the query answers as review rewrote them (V-521)

The owner's wording, taken from the PR 111 review, with one correction from the
PR 113 review folded in: {temp} {word} rather than {temp}°, because the degree
sign reads as nothing through piper.

What the wording changes: query_unknown drops "не знаю.", which is the exact
string the phrasing fallback emits, so two different causes stopped producing
one sentence. weather_nolocation stops reading voice.weather.default_location
out loud and just asks which city. feeds_off matches weather_off, stating the
gap instead of narrating around it. The passive doubles and the near-identical
pairs go.

net_empty gains the variant with no placeholder in it, which is what the deck
change needs to have something to say when a scan covered the whole range.

The tests are the two bugs and the two rules: net_empty says something whatever
it is handed and keeps a tail it is given, query_unknown never repeats a
phrasing-failure line, the weather line counts through the helper, and no
variant says a config path. The feeds test asserted a substring of a
two-variant entry and passed only on the turns the picker chose the first one —
it goes through IsQ now.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XGTGCWX33aX8SMBSRz9VmS

cmd/mavend/actions_query.go

@@ -397,6 +397,7 @@ func (h *reactiveHandler) queryWeather(ctx context.Context, t *queryTurn) (strin
 	return phraser.Q(phraser.QueryWeatherNow, map[string]string{
 		"location":  w.Location,
 		"temp":      fmt.Sprintf("%.0f", w.Temperature),
+		"word":      phraser.Degrees(w.Temperature),
 		"condition": w.Condition,
 	}), true
 }

cmd/mavend/feeds_test.go

@@ -87,16 +87,22 @@ func TestQueryFeedsByCategory(t *testing.T) {
 // "не настроены" and "ничего нового" are different truths, and neither may be
 // answered by the model inventing a bulletin.
 func TestQueryFeedsOffAndEmptyDiffer(t *testing.T) {
+	// Against the entries, not against a substring: both of these have several
+	// wordings, so "ничего нового" passed only on the turns the picker happened
+	// to choose the first one.
 	off := buildFeedHandler(t, false)
 	reply, ok := askFeeds(t, off, "что нового в лентах?")
-	if !ok || !strings.Contains(reply, "не настроены") {
+	if !ok || !phraser.IsQ(phraser.QueryFeedsOff, nil, reply) {
 		t.Fatalf("feeds off: reply = %q, ok = %v", reply, ok)
 	}
 	on := buildFeedHandler(t, true)
 	reply, ok = askFeeds(t, on, "что нового в лентах?")
-	if !ok || !strings.Contains(reply, "ничего нового") {
+	if !ok || !phraser.IsQ(phraser.QueryFeedsEmpty, nil, reply) {
 		t.Fatalf("feeds on but empty: reply = %q, ok = %v", reply, ok)
 	}
+	if phraser.IsQ(phraser.QueryFeedsOff, nil, reply) {
+		t.Fatalf("an empty feed answered as an unconfigured one: %q", reply)
+	}
 }
 
 func TestQueryFeedsPassesOnANonFeedQuestion(t *testing.T) {