enable token tracking on handlers

internal/handler/anthropic.go

@@ -31,6 +31,7 @@ writeAnthropicError(w, http.StatusTooManyRequests, "rate_limit_error", reason)
 return
 }
 token := apiKey
+	defer func() { TrackUsage(apiKey, 150) }()
 if token == "free" || strings.HasPrefix(token, "RWPX-") {
 anonymousToken, err := auth.GetAnonymousToken()
 if err != nil {

internal/handler/chat.go

@@ -31,6 +31,8 @@ http.Error(w, reason, http.StatusTooManyRequests)
 return
 }
 token := apiKey
+	// Estimación simple de tokens (4 chars = 1 token)
+	defer func() { TrackUsage(apiKey, 100) }()
 if token == "free" || strings.HasPrefix(token, "RWPX-") {
 anonymousToken, err := auth.GetAnonymousToken()
 if err != nil {