an act with a target the system cannot have does not run (V-634)

V-633 gave tools spoken aliases, so a Russian act reaches a tool. It resolves
the verb only: the rest of the sentence became argv. "перезагрузи роутер" ran
as systemctl restart роутер, which is a real tool, a real word and a target
that cannot exist on this box. She then reported systemctl's own confusion as
if she had tried something sensible, and on a destructive row she spent a
confirm turn on it first.

The executor now refuses, ahead of the confirm gate, and names the word it
could not place. The check is the script and not a word list: a unit, a
container, a host and a path are ASCII here, so a Cyrillic argv element means
the alias match swallowed the verb and handed on the next word.

Process rows only. An MCP argument is not a target — a task title is Russian
and always was — and a house row drops the spoken args already.

It does not try to guess the right target. Identity is Nexus's, and a target
Nexus resolves reaches Hexis through handleHexisAct before this executor is
asked.

internal/phraser/acts.go

@@ -45,6 +45,10 @@ const (
 	// is the only authority the voice path can offer, and this is the one act
 	// it is not enough for (Vikunja #449, #523).
 	ActNeedsAuthedSurface = "act_needs_authed_surface"
+	// ActUnknownTarget — the verb reached a tool and the target did not reach
+	// anything. Named rather than run, because the alias match swallowed the verb
+	// and handed on the next word of the sentence (V-634).
+	ActUnknownTarget = "act_unknown_target"
 
 	EcoDenied        = "eco_denied"
 	EcoDown          = "eco_down"
@@ -76,7 +80,7 @@ const (
 var actKeys = []string{
 	ActDone, ActDoneOut, ActDoneEntity, ActConfirm, ActConfirmEntity, ActWhich,
 	ActFail, ActFailOut, ActFailEntity, ActServerDown, ActWithdrawn, ActNeedsArgs,
-	ActNeedsAuthedSurface,
+	ActNeedsAuthedSurface, ActUnknownTarget,
 	EcoDenied, EcoDown, EcoAmbiguous, EcoUnknownEntity, EcoNoNexus, EcoAboutWhat, EcoRecall,
 	AttentionNone, AttentionList, AttentionFail,
 	AttentionNoneEntity, AttentionListEntity, AttentionFailEntity,
@@ -102,6 +106,7 @@ var actFloor = map[string]string{
 	ActServerDown:         "инструмент есть, но сервер не подключён.",
 	ActWithdrawn:          "сервер больше не отдаёт этот инструмент — сняла его с разрешённых, посмотри /tools.",
 	ActNeedsArgs:          "тут нужны аргументы, из голоса не соберу. угадывать не буду.",
+	ActUnknownTarget:      "«{name}» — не знаю такой цели. назови её как в системе.",
 	ActNeedsAuthedSurface: "это из голоса не выполню — после него ничего не вернуть. запусти сам.",
 
 	EcoDenied:        "{name} отклоняет доступ, проверь токен.",

internal/phraser/acts_ru_v1.json

@@ -60,6 +60,10 @@
       "fixed": true,
       "variants": ["тут нужны аргументы, из голоса не соберу. угадывать не буду."]
     },
+    "act_unknown_target": {
+      "fixed": true,
+      "variants": ["«{name}» — не знаю такой цели. назови её как в системе."]
+    },
     "act_needs_authed_surface": {
       "fixed": true,
       "variants": ["это из голоса не выполню — после него ничего не вернуть. запусти сам."]