Improving chat functionality significantly throughout the application.

common/models/user.py

@@ -19,6 +19,7 @@ class Tenant(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     name = db.Column(db.String(80), unique=True, nullable=False)
     website = db.Column(db.String(255), nullable=True)
+    timezone = db.Column(db.String(50), nullable=True, default='UTC')
 
     # language information
     default_language = db.Column(db.String(2), nullable=True)
@@ -70,7 +71,9 @@ class Tenant(db.Model):
             'llm_model': self.llm_model,
             'license_start_date': self.license_start_date,
             'license_end_date': self.license_end_date,
-            'allowed_monthly_interactions': self.allowed_monthly_interactions
+            'allowed_monthly_interactions': self.allowed_monthly_interactions,
+            'embed_tuning': self.embed_tuning,
+            'rag_tuning': self.rag_tuning,
         }