robot, command: think instead of speak

For #94.

command/talk.go

@@ -28,14 +28,14 @@ func speakCmd(ctx context.Context, robo *Robot, call *Invocation, effect string)
 		return "no " + e
 	}
 	start := time.Now()
-	m, trace, err := brain.Speak(ctx, robo.Brain, call.Channel.Send, call.Args["prompt"])
+	m, trace, err := brain.Think(ctx, robo.Brain, call.Channel.Send, call.Args["prompt"])
 	cost := time.Since(start)
 	if err != nil {
-		robo.Log.ErrorContext(ctx, "couldn't speak", "err", err.Error())
+		robo.Log.ErrorContext(ctx, "couldn't think", "err", err.Error())
 		return ""
 	}
 	if m == "" {
-		robo.Log.InfoContext(ctx, "spoke nothing", slog.String("tag", call.Channel.Send), slog.String("prompt", call.Args["prompt"]))
+		robo.Log.InfoContext(ctx, "thought nothing", slog.String("tag", call.Channel.Send), slog.String("prompt", call.Args["prompt"]))
 		return ""
 	}
 	e := call.Channel.Emotes.Pick(rand.Uint32())

main.go

@@ -172,7 +172,7 @@ func cliSpeak(ctx context.Context, cmd *cli.Command) error {
 	prompt := cmd.String("prompt")
 	for range cmd.Int("n") {
 		group.Go(func() error {
-			m, tr, err := brain.Speak(ctx, br, tag, prompt)
+			m, tr, err := brain.Think(ctx, br, tag, prompt)
 			if err != nil {
 				return err
 			}

privmsg.go

@@ -104,14 +104,14 @@ func (robo *Robot) tmiMessage(ctx context.Context, send chan<- *tmi.Message, msg
 		return
 	}
 	start := time.Now()
-	s, trace, err := brain.Speak(ctx, robo.brain, ch.Send, "")
+	s, trace, err := brain.Think(ctx, robo.brain, ch.Send, "")
 	cost := time.Since(start)
 	if err != nil {
-		log.ErrorContext(ctx, "wanted to speak but failed", slog.Any("err", err), slog.Duration("cost", cost))
+		log.ErrorContext(ctx, "wanted to think but failed", slog.Any("err", err), slog.Duration("cost", cost))
 		return
 	}
 	if s == "" {
-		log.InfoContext(ctx, "spoke nothing", slog.String("tag", ch.Send), slog.Duration("cost", cost))
+		log.InfoContext(ctx, "thought nothing", slog.String("tag", ch.Send), slog.Duration("cost", cost))
 		return
 	}
 	x := rand.Uint64()