server-tx part : web UI, PDF generator & transfer to RX server

server-tx/app/_tools/models/session.py

@@ -0,0 +1,10 @@
+class Session:
+    def __init__(
+            self,
+            token : str,
+            user_id : int,
+            expires : int
+    ):
+        self.token = token
+        self.user_id = user_id
+        self.expires = expires