refactor: add Pubkey, Privkey, NoteId string aliases

This is a non-behavioral change in preparation for the actual switchover
from Strings to Ids. The purpose of this kit is to reduce the size of
the switchover commit which is going to be very large.

damus/Util/EventCache.swift

@@ -61,7 +61,7 @@ class ZapsDataModel: ObservableObject {
         self.zaps = zaps
     }
     
-    func confirm_nwc(reqid: String) {
+    func confirm_nwc(reqid: NoteId) {
         guard let zap = zaps.first(where: { z in z.request.ev.id == reqid }),
               case .pending(let pzap) = zap
         else {
@@ -82,7 +82,7 @@ class ZapsDataModel: ObservableObject {
         zaps.reduce(0) { total, zap in total + zap.amount }
     }
    
-    func from(_ pubkey: String) -> [Zapping] {
+    func from(_ pubkey: Pubkey) -> [Zapping] {
         return self.zaps.filter { z in z.request.ev.pubkey == pubkey }
     }
     
@@ -137,7 +137,7 @@ class EventData {
 }
 
 class EventCache {
-    private var events: [String: NostrEvent] = [:]
+    private var events: [NoteId: NostrEvent] = [:]
     private var replies = ReplyMap()
     private var cancellable: AnyCancellable?
     private var image_metadata: [String: ImageMetadataState] = [:]
@@ -154,7 +154,7 @@ class EventCache {
         }
     }
     
-    func get_cache_data(_ evid: String) -> EventData {
+    func get_cache_data(_ evid: NoteId) -> EventData {
         guard let data = event_data[evid] else {
             let data = EventData()
             event_data[evid] = data
@@ -164,11 +164,11 @@ class EventCache {
         return data
     }
     
-    func is_event_valid(_ evid: String) -> ValidationResult {
+    func is_event_valid(_ evid: NoteId) -> ValidationResult {
         return get_cache_data(evid).validated
     }
     
-    func store_event_validation(evid: String, validated: ValidationResult) {
+    func store_event_validation(evid: NoteId, validated: ValidationResult) {
         get_cache_data(evid).validated = validated
     }
     
@@ -278,7 +278,7 @@ class EventCache {
         return ev
     }
     
-    func lookup(_ evid: String) -> NostrEvent? {
+    func lookup(_ evid: NoteId) -> NostrEvent? {
         return events[evid]
     }