add pdf

api/main.proto

@@ -71,6 +71,12 @@ service EveningDetective {
       body: "*"
     };
   }
+
+  rpc DownloadTeamsQrCodesFile(DownloadTeamsQrCodesFileReq) returns (DownloadTeamsQrCodesFileRsp) {
+    option (google.api.http) = {
+      get: "/teams/pdf"
+    };
+  }
 }
 
 message PingReq {}
@@ -167,3 +173,9 @@ message GiveApplicationsReq {
 }
 
 message GiveApplicationsRsp {}
+
+message DownloadTeamsQrCodesFileReq {}
+
+message DownloadTeamsQrCodesFileRsp {
+  bytes result = 1;
+}