router: stage 0 claims the task marker before the model renames it (V-467)

Spoken capture was dead. "добавь в задачи купить молоко" routed act, so the
gate found no allowlisted fn and asked "Что сделать?", and the list stayed
empty. Capture rides the note intent by design (#130, no eighth intent), and
nothing under actionNote was reached any more. The model also rewrote the
payload on the way — "купить молоко" came back as "сделать покупку молока",
and a task must read as the words he said.

TaskCaptureGrammar answers it at stage 0, the same place the agenda rules
went. It matches any utterance and lets ParseTaskCapture refuse, so the
marker list stays data. Three phrasings he used are added to that list:
"запиши в список дел" and the two next to it were missing.

The other deterministic matchers were checked for the same exposure. They
are all question-shaped — money, habit, feed, day plan, task list, calendar —
and a question lands on query, which is where they already sit. Capture was
the only imperative among them, which is why only it was taken.

ru-note-006 is the fixture case. The classifier alone cannot pass it, and the
hash baseline drops by that one case; the daemon answers it at stage 0.

cmd/mavend/reactive_notes_test.go

@@ -2,12 +2,14 @@ package main
 
 import (
 	"context"
+	"strings"
 	"testing"
 	"time"
 
 	"github.com/kami/maven/internal/ipc"
 	"github.com/kami/maven/internal/memory"
 	"github.com/kami/maven/internal/router"
+	"github.com/kami/maven/internal/store"
 	"github.com/kami/maven/internal/tool"
 	"github.com/kami/maven/internal/voice"
 )
@@ -85,3 +87,38 @@ func TestReactiveNotesReminders(t *testing.T) {
 		}
 	})
 }
+
+// TestSpokenTaskCaptureFilesATask — the whole path, from the utterance to the
+// task table. It went dead when the router started claiming the marker as an
+// act: capture rides the note intent, so nothing below actionNote was ever
+// reached and every capture answered "Что сделать?" (Vikunja #467).
+func TestSpokenTaskCaptureFilesATask(t *testing.T) {
+	ctx := context.Background()
+	st := newTestStore(t)
+	api := ipc.NewStoreAPI(st)
+	now := time.Now()
+	emb := router.NewHashEmbedder(1024)
+	matcher := tool.NewMatcher(api)
+	h := &reactiveHandler{
+		api:       api,
+		embedder:  emb,
+		router:    buildRouter(emb, matcher, 0.55, nil),
+		replier:   voice.NewStubReplier(),
+		now:       func() time.Time { return now },
+		memStore:  memory.NewInMemoryStore(),
+		dataStore: st,
+	}
+
+	reply := h.handleText(ctx, "web", "добавь в задачи купить молоко")
+	if !strings.Contains(reply, "купить молоко") {
+		t.Fatalf("capture did not claim the turn: %q", reply)
+	}
+	open, err := st.ListTasks(ctx, store.TaskOpen)
+	if err != nil || len(open) != 1 {
+		t.Fatalf("task was not filed: tasks=%v err=%v", open, err)
+	}
+	// The words he said, not the model's rewrite of them.
+	if open[0].Text != "купить молоко" {
+		t.Fatalf("task text was rewritten: %q", open[0].Text)
+	}
+}

cmd/mavend/voicewire.go

@@ -380,6 +380,11 @@ func buildRouter(emb router.Embedder, acts router.ActMatcher, threshold float64,
 	// is an agenda question and must not.
 	grammars = append(grammars, router.AgendaQueryGrammars()...)
 	grammars = append(grammars, router.ReminderGrammar())
+	// Last, and it matches any utterance shape — its Build is the filter. An
+	// explicit capture marker beats the model, which called it an act and
+	// rewrote the task text (Vikunja #467). After the rules above because a
+	// marker never collides with a clock or agenda question.
+	grammars = append(grammars, router.TaskCaptureGrammar())
 	return router.New(router.Config{
 		Grammars:   grammars,
 		Classifier: cls,