Include username in session logs if available

Fixes #1310

src/experimental/parser/session.nim

@@ -13,6 +13,7 @@ proc parseSession*(raw: string): Session =
     result = Session(
       kind: SessionKind.oauth,
       id: parseBiggestInt(id),
+      username: session.username,
       oauthToken: session.oauthToken,
       oauthSecret: session.oauthTokenSecret
     )
@@ -21,6 +22,7 @@ proc parseSession*(raw: string): Session =
     result = Session(
       kind: SessionKind.cookie,
       id: id,
+      username: session.username,
       authToken: session.authToken,
       ct0: session.ct0
     )

src/experimental/types/session.nim

@@ -1,8 +1,8 @@
 type
   RawSession* = object
     kind*: string
-    username*: string
     id*: string
+    username*: string
     oauthToken*: string
     oauthTokenSecret*: string
     authToken*: string