Fix socials timestamp (#50)

* Fix Dockerfile per dipendenze di X
* time --> timestamp
* fix X command

tests/api/test_social_x_api.py

@@ -1,11 +1,13 @@
 import os
 import re
 import pytest
+from shutil import which
 from app.api.social.x import XWrapper
 
 @pytest.mark.social
 @pytest.mark.api
 @pytest.mark.skipif(not os.getenv("X_API_KEY"), reason="X_API_KEY not set in environment variables")
+@pytest.mark.skipif(which('rettiwt') is None, reason="rettiwt not installed")
 class TestXWrapper:
     def test_initialization(self):
         wrapper = XWrapper()
@@ -18,5 +20,5 @@ class TestXWrapper:
         assert len(posts) == 2
         for post in posts:
             assert post.title != ""
-            assert re.match(r'\d{4}-\d{2}-\d{2}', post.time)
+            assert re.match(r'\d{4}-\d{2}-\d{2}', post.timestamp)
             assert isinstance(post.comments, list)