fix: revert to proto3 syntax and remove invalid required fields

fix: revert to proto3 syntax and remove invalid required fields

WAProto/WAProto.proto

@@ -1,4 +1,4 @@
-syntax = "proto2";
+syntax = "proto3";
 package proto;
 
 /// WhatsApp Version: 2.3000.1033381705
@@ -1065,10 +1065,10 @@ message ChatRowOpaqueData {
 }
 
 message Citation {
-    required string title = 1;
-    required string subtitle = 2;
-    required string cmsId = 3;
-    required string imageUrl = 4;
+    optional string title = 1;
+    optional string subtitle = 2;
+    optional string cmsId = 3;
+    optional string imageUrl = 4;
 }
 
 message ClientPairingProps {
@@ -1553,7 +1553,7 @@ message ContextInfo {
 }
 
 message Conversation {
-    required string id = 1;
+    optional string id = 1;
     repeated HistorySyncMsg messages = 2;
     optional string newJid = 3;
     optional string oldJid = 4;
@@ -1882,7 +1882,7 @@ message GroupMention {
 }
 
 message GroupParticipant {
-    required string userJid = 1;
+    optional string userJid = 1;
     optional Rank rank = 2;
     optional MemberLabel memberLabel = 3;
     enum Rank {
@@ -1920,7 +1920,7 @@ message HandshakeMessage {
 }
 
 message HistorySync {
-    required HistorySyncType syncType = 1;
+    optional HistorySyncType syncType = 1;
     repeated Conversation conversations = 2;
     repeated WebMessageInfo statusV3Messages = 3;
     optional uint32 chunkOrder = 5;
@@ -2080,8 +2080,8 @@ message KeyId {
 }
 
 message LIDMigrationMapping {
-    required uint64 pn = 1;
-    required uint64 assignedLid = 2;
+    optional uint64 pn = 1;
+    optional uint64 assignedLid = 2;
     optional uint64 latestLid = 3;
 }
 
@@ -3724,10 +3724,10 @@ message Message {
     }
     
     message VideoEndCard {
-        required string username = 1;
-        required string caption = 2;
-        required string thumbnailImageUrl = 3;
-        required string profilePictureUrl = 4;
+        optional string username = 1;
+        optional string caption = 2;
+        optional string thumbnailImageUrl = 3;
+        optional string profilePictureUrl = 4;
     }
     
     message VideoMessage {
@@ -4557,7 +4557,7 @@ message StatusMentionMessage {
 }
 
 message StatusPSA {
-    required uint64 campaignId = 44;
+    optional uint64 campaignId = 44;
     optional uint64 campaignExpirationTimestamp = 45;
 }
 
@@ -4689,7 +4689,7 @@ message SyncActionValue {
     }
     
     message BroadcastListParticipant {
-        required string lidJid = 1;
+        optional string lidJid = 1;
         optional string pnJid = 2;
     }
     
@@ -4734,15 +4734,15 @@ message SyncActionValue {
     }
     
     message CustomPaymentMethod {
-        required string credentialId = 1;
-        required string country = 2;
-        required string type = 3;
+        optional string credentialId = 1;
+        optional string country = 2;
+        optional string type = 3;
         repeated SyncActionValue.CustomPaymentMethodMetadata metadata = 4;
     }
     
     message CustomPaymentMethodMetadata {
-        required string key = 1;
-        required string value = 2;
+        optional string key = 1;
+        optional string value = 2;
     }
     
     message CustomPaymentMethodsAction {
@@ -4780,7 +4780,7 @@ message SyncActionValue {
     }
     
     message InteractiveMessageAction {
-        required InteractiveMessageActionMode type = 1;
+        optional InteractiveMessageActionMode type = 1;
         enum InteractiveMessageActionMode {
             DISABLE_CTA = 1;
         }
@@ -4868,8 +4868,8 @@ message SyncActionValue {
     }
     
     message MerchantPaymentPartnerAction {
-        required Status status = 1;
-        required string country = 2;
+        optional Status status = 1;
+        optional string country = 2;
         optional string gatewayName = 3;
         optional string credentialId = 4;
         enum Status {
@@ -4925,8 +4925,8 @@ message SyncActionValue {
     }
     
     message PaymentTosAction {
-        required PaymentNotice paymentNotice = 1;
-        required bool accepted = 2;
+        optional PaymentNotice paymentNotice = 1;
+        optional bool accepted = 2;
         enum PaymentNotice {
             BR_PAY_PRIVACY_POLICY = 0;
         }
@@ -5295,7 +5295,7 @@ message UserPassword {
 }
 
 message UserReceipt {
-    required string userJid = 1;
+    optional string userJid = 1;
     optional int64 receiptTimestamp = 2;
     optional int64 readTimestamp = 3;
     optional int64 playedTimestamp = 4;
@@ -5381,7 +5381,7 @@ enum WebLinkRenderConfig {
     SYSTEM = 1;
 }
 message WebMessageInfo {
-    required MessageKey key = 1;
+    optional MessageKey key = 1;
     optional Message message = 2;
     optional uint64 messageTimestamp = 3;
     optional Status status = 4;