Removing DocumentLanguage, as both System Context and User Context are to be defined on DocumentVersion level.

Finetuning of embedding workers.

common/models/user.py

@@ -48,6 +48,10 @@ class Tenant(db.Model):
     allowed_monthly_interactions = db.Column(db.Integer, nullable=True)
     encrypted_chat_api_key = db.Column(db.String(500), nullable=True)
 
+    # Tuning enablers
+    embed_tuning = db.Column(db.Boolean, nullable=True, default=False)
+    rag_tuning = db.Column(db.Boolean, nullable=True, default=False)
+
     # Relations
     users = db.relationship('User', backref='tenant')
     domains = db.relationship('TenantDomain', backref='tenant')
@@ -133,7 +137,10 @@ class TenantDomain(db.Model):
 
     id = db.Column(db.Integer, primary_key=True)
     tenant_id = db.Column(db.Integer, db.ForeignKey('public.tenant.id'), nullable=False)
-    domain = db.Column(db.String(255), unique=True, nullable=False)
+    # Originally, domain was required to be unique.
+    # However, several tenants can run from the same domain (e.g. for demo purposes,
+    # but also internal and external chat clients.
+    domain = db.Column(db.String(255), nullable=False)
     valid_to = db.Column(db.Date, nullable=True)
 
     # Versioning Information