Method HandleDashboardStats

internal/auth/auth.go:562–587

HandleDashboardStats returns the workspace-level aggregates for the redesigned dashboard's stats strip. Accepts ?window=N (days) to vary the lookback for inbound/outbound totals + delivery success — the dashboard at-a-glance strip omits it (defaults to 7), the settings usage card passes ?window=30.

(w http.ResponseWriter, r *http.Request)

// data sources and graceful-degradation behavior when usage tracking
// is disabled.
func (ua *UserAuth) HandleDashboardStats(w http.ResponseWriter, r *http.Request) {
	user := ua.AuthenticateRequest(r)
	if user == nil {
		http.Error(w, "not authenticated", http.StatusUnauthorized)
		return
	}

	// Parse optional ?window=N. Bad values get treated as "use default"
	// rather than 400 — the dashboard simply shouldn't break if a
	// caller fat-fingers the query string.
	windowDays := 0
	if raw := r.URL.Query().Get("window"); raw != "" {
		if n, err := strconv.Atoi(raw); err == nil {
			windowDays = n
		}
	}

	stats, err := ua.store.GetDashboardStats(r.Context(), user.ID, windowDays)
	if err != nil {
		http.Error(w, "failed to fetch dashboard stats", http.StatusInternalServerError)
		return
	}

	w.Header().Set("Content-Type", "application/json")
	writeJSON(w, stats)
}

// HandleDashboardAgents lists agents owned by the authenticated user.
func (ua *UserAuth) HandleDashboardAgents(w http.ResponseWriter, r *http.Request) {