mavend: say the act replies from the file (V-504)

Also fixes a flake this stack introduced: the feeds test matched "ничего
нового" as a substring, and query_ru_v1.json can answer with "в лентах тихо".
It asks the entry now, like the others.

internal/phraser/eval/fallbacks_test.go

@@ -8,8 +8,7 @@ import (
 	"github.com/kami/maven/internal/phraser"
 )
 
-// TestFallbackPersona scores every line in fallbacks_ru_v1.json, ack_ru_v1.json and
-// query_ru_v1.json on the persona checks the nudges already pass. These lines are
+// TestFallbackPersona scores every line in every hand-written line family on the persona checks the nudges already pass. These lines are
 // heard out loud and they live in a JSON file now, so a reworded variant that
 // says "рад" or "вы" would otherwise reach him with nothing in between.
 //
@@ -38,6 +37,11 @@ func TestFallbackPersona(t *testing.T) {
 	}
 	variants := append(fb.Variants(), ack.Variants()...)
 	variants = append(variants, qry.Variants()...)
+	act, err := phraser.LoadActs(rand.NewSource(20260804))
+	if err != nil {
+		t.Fatalf("LoadActs: %v", err)
+	}
+	variants = append(variants, act.Variants()...)
 	if len(variants) == 0 {
 		t.Fatal("no variants — the file loaded empty")
 	}
@@ -45,7 +49,8 @@ func TestFallbackPersona(t *testing.T) {
 		// The placeholders stand for his own words and carry no persona.
 		body := v
 		for _, ph := range []string{"{sources}", "{key}", "{value}", "{fn}", "{text}", "{when}", "{items}",
-			"{location}", "{temp}", "{condition}", "{tail}"} {
+			"{location}", "{temp}", "{condition}", "{tail}", "{out}", "{name}",
+			"{entity}", "{count}", "{word}"} {
 			body = strings.ReplaceAll(body, ph, "вода")
 		}
 		for _, r := range RunChecks(Case{}, body, "neutral") {