[enh] add url watcher + add optional maxLate parameter for BMA watcher

src/lib/types/conf.ts

@@ -3,6 +3,7 @@ export interface Conf {
   reconnectionDelays: number[]
   ws2pServers: ConfWS2P[]
   bmaServers: ConfBMA[]
+  dprobeHeartbeats: ConfDprobeHeartbeat[]
   mail: ConfMail
 }
 
@@ -14,11 +15,19 @@ export interface ConfWS2P {
   currency: string
 }
 
-export interface ConfBMA {
+export interface ConfURL {
   address: string
   frequency: number
 }
 
+export interface ConfBMA extends ConfURL {
+  maxLate?: number
+}
+
+export interface ConfDprobeHeartbeat extends ConfURL{
+  lastBeat: number
+}
+
 export interface ConfMail {
   enabled: boolean
   host: string