[add] head-watcher

src/lib/types/conf.ts

@@ -5,6 +5,7 @@ export interface Conf {
   bmaServers: ConfBMA[]
   dprobeHeartbeats: ConfDprobeHeartbeat[]
   webDiffServers: ConfWebDiff[]
+  headServers: ConfHead[]
   mail: ConfMail
 }
 
@@ -33,6 +34,11 @@ export interface ConfBMA extends ConfURL {
   maxLate?: number
 }
 
+export interface ConfHead extends ConfURL {
+  observedPubkey: string
+  maxLateBlocks: number
+}
+
 export interface ConfDprobeHeartbeat extends ConfURL{
   lastBeat: number
 }