add oauth

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@lendry-erp/contracts",
-  "version": "1.2.35",
+  "version": "1.2.36",
   "description": "Protobuf definitions and generated TypeScript types",
   "type": "commonjs",
   "main": "./dist/index.js",

proto/sso/auth.proto

@@ -14,6 +14,10 @@ service AuthService {
     rpc GetSessions(GetSessionRequest) returns (GetSessionsResponse);
     rpc TerminateSession(TerminateSessionRequest) returns (TerminateSessionResponse);
 
+    // === OAuth2 SSO ===
+    rpc GenerateOauthCode (GenerateOauthCodeRequest) returns (GenerateOauthCodeResponse);
+    rpc ExchangeOauthCode (ExchangeOauthCodeRequest) returns (ExchangeOauthCodeResponse);
+
     // Системные методы для админа 
     rpc SystemCreateAccount (SystemCreateAccountRequest) returns (SystemCreateAccountResponse);
     rpc SystemChangeStatus (SystemChangeStatusRequest) returns (SystemChangeStatusResponse);
@@ -113,6 +117,28 @@ message TerminateSessionResponse {
   string message = 2;
 }
 
+
+// === Сообщения для OAuth2 SSO ===
+
+message GenerateOauthCodeRequest {
+  string user_id = 1;
+}
+
+message GenerateOauthCodeResponse {
+  string code = 1;
+}
+
+message ExchangeOauthCodeRequest {
+  string code = 1;
+  string client_id = 2;
+  string client_secret = 3;
+}
+
+message ExchangeOauthCodeResponse {
+  string access_token = 1;
+  int32 expires_in = 2;
+}
+
 message SystemCreateAccountRequest {
   string username = 1;
   string password_hash = 2; // Хеш пароля генерирует Admin Service и передает сюда