voicewire: fix drifted seed comments, dedupe dialogue TTL (V-581)

buildRouter's third bullet described a hardcoded 6-example bootstrap
set that predates seedClassifier's file-based loader; seedClassifier's
own comment named 5 seed files where there are 7 (chat.txt and
system.txt were missing). Also named the repeated 2*time.Minute
dialogue session TTL literal as dialogueSessionTTL so the two call
sites can't drift apart.

cmd/mavend/voicewire.go

@@ -236,21 +236,22 @@ func wireVoice(cfg *config.Config, coreAPI ipc.CoreAPI, phr phraser.Phraser, mem
 		memStore = memory.NewInMemoryStore()
 	}
 
-	// ----- dialogue (multi-turn slot carry-over; 2-min follow-up window) -----
+	// ----- dialogue (multi-turn slot carry-over; dialogueSessionTTL follow-up window) -----
 	// Store-backed when the daemon passes a store, so a restart mid-conversation
 	// keeps the thread (Vikunja #363). Sessions past their TTL are dropped on
 	// load, never revived. Clarify's parked question stays in memory only, and
 	// that is a decision rather than an omission (Vikunja #385, docs/design.md):
 	// a restart expires it, so the thread comes back and the open question does
 	// not.
+	const dialogueSessionTTL = 2 * time.Minute
 	var dialogueSessions *dialogue.SessionStore
 	if dataStore != nil {
-		dialogueSessions = dialogue.NewPersistentSessionStore(2*time.Minute, dataStore)
+		dialogueSessions = dialogue.NewPersistentSessionStore(dialogueSessionTTL, dataStore)
 		if err := dialogueSessions.Load(context.Background(), time.Now()); err != nil {
 			log.Printf("dialogue: load saved sessions: %v", err)
 		}
 	} else {
-		dialogueSessions = dialogue.NewSessionStore(2 * time.Minute)
+		dialogueSessions = dialogue.NewSessionStore(dialogueSessionTTL)
 	}
 	clarifyStore := dialogue.NewClarifyStore(clarifyTTL)
 	timeParser := router.NewPythonDateParser()
@@ -376,9 +377,9 @@ func pickLLMRouter(enabled bool, c router.Completer) *router.LLMRouter {
 //   - The embedder is provided by wireVoice: HashEmbedder (floor) when no
 //     embedder config is present, or the ONNX multilingual model when
 //     configured — same interface, one constructor change.
-//   - 6 bootstrap examples covering the 5 intents + one compound-capture
-//     placeholder. Spec calls for ~10 per intent at production; this is the
-//     bootstrapping floor swapped by tuning the seed set later.
+//   - The classifier is floored by seedClassifier, which loads one file per
+//     intent from seedDir (models/seeds/<intent>.txt) — see seedClassifier
+//     below for the current intent list and file names.
 //   - Threshold is from voice.router_threshold config (default 0.55).
 func buildRouter(emb router.Embedder, acts router.ActMatcher, threshold float64, llmR *router.LLMRouter) *router.Router {
 	cls := router.NewClassifier(emb)
@@ -461,9 +462,10 @@ func seedPath() string {
 
 // seedClassifier floors the embedded examples so the cold-boot path
 // doesn't return ErrNoIntents. Loads examples from seedDir — one file per
-// intent (act.txt, reminder.txt, fact.txt, note.txt, query.txt). When the
-// classifier can't decide it falls through to Clarify — the last-resort
-// path asks the user to rephrase rather than guessing wrong.
+// intent (act.txt, reminder.txt, fact.txt, note.txt, query.txt, chat.txt,
+// system.txt). When the classifier can't decide it falls through to
+// Clarify — the last-resort path asks the user to rephrase rather than
+// guessing wrong.
 func seedClassifier(c *router.Classifier) {
 	intents := []router.Intent{
 		router.IntentAct,