Add fake leads listing

Just to get JavaScript to stop complaining.

api/lead.go

@@ -15,7 +15,18 @@ type formLeads struct {
 type createdLead struct {
 	ID int `json:"id"`
 }
+type contentListLead struct {
+	Leads []lead `json:"leads"`
+}
+type lead struct {
+	ID int32 `json:"id"`
+}
 
+func listLead(ctx context.Context, r *http.Request, org *models.Organization, user *models.User) (*contentListLead, *nhttp.ErrorWithStatus) {
+	return &contentListLead{
+		Leads: make([]lead, 0),
+	}, nil
+}
 func postLeads(ctx context.Context, r *http.Request, org *models.Organization, user *models.User, f formLeads) (*createdLead, *nhttp.ErrorWithStatus) {
 	log.Info().Ints("signal ids", f.SignalIDs).Msg("fake post leads")
 	return &createdLead{

api/routes.go

@@ -19,6 +19,7 @@ func AddRoutes(r chi.Router) {
 	r.Method("POST", "/audio/{uuid}/content", auth.NewEnsureAuth(apiAudioContentPost))
 	r.Method("POST", "/image/{uuid}", auth.NewEnsureAuth(apiImagePost))
 	r.Method("POST", "/image/{uuid}/content", auth.NewEnsureAuth(apiImageContentPost))
+	r.Method("GET", "/leads", authenticatedHandlerJSON(listLead))
 	r.Method("POST", "/leads", authenticatedHandlerJSONPost(postLeads))
 
 	// Unauthenticated endpoints