mavend: answer what he told her, from the facts he already tapped in (V-456)

Read-only over rows that exist. No new mechanism and no new storage: every
fact he tapped in already carries a source and a timestamp, and the history
source only reads them back.

Only "tap:" sources, and only the last day. A fact written by a poller, an
inference or the ambient relay is a thing she learned rather than a thing he
said, and reading those back under "что я тебе говорил?" would put words in
his mouth. Five at a time, which is what fits in one spoken breath — the rest
are on /history, which is the surface for reading a list.

Above the recall sources, with the others that read his own rows: the notes
pass would otherwise answer this from whatever note is nearest, which reads
as an answer and is not one. The matcher wants both halves of a history
phrase and steps aside when he names a topic, so "что я говорил про сервер"
stays a recall question.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

cmd/mavend/actions_query.go

@@ -91,6 +91,12 @@ var querySources = []querySource{
 	// answer it from whatever he once said about spending. Its matcher needs a
 	// money noun plus an actual ask, so "я потратил весь день" is untouched.
 	{name: "money", answer: (*reactiveHandler).queryMoney},
+	// Also above the recall sources: "что я тебе говорил?" is a question about
+	// the facts he tapped in, and the notes pass would answer it with whatever
+	// note is nearest (Vikunja #456). Its matcher needs both halves of a
+	// history phrase and bails out when he names a topic, so "что я говорил
+	// про сервер" is still recall.
+	{name: "history", answer: (*reactiveHandler).queryHistory},
 	// Before the recall sources and before general knowledge: "что нового?" is
 	// a question about the feeds she reads, and general knowledge would answer
 	// it by inventing news. Its matcher needs a feed noun plus an ask, so