Aug 7 - Update: UI change - MT16

app/models/user.py

@@ -55,6 +55,17 @@ class User(UserMixin, db.Model):
     created_at    = db.Column(db.DateTime, default=now_eastern)
     active        = db.Column(db.Boolean, default=True, nullable=False)
 
+    # ── Web portal design preference (MT-16) ──────────────────────────────
+    # 'classic' = the original top-navbar design. 'modern' = the sidebar design.
+    # Drives base.html's layout dispatch via the inject_ui_theme() context
+    # processor. Persisted per user so the choice survives logout.
+    #
+    # Defaults to 'classic' so existing tenants see no change on deploy; the
+    # effective fallback for accounts that never choose is config
+    # DEFAULT_UI_THEME, which a tenant can be provisioned with as 'modern'.
+    ui_theme      = db.Column(db.String(16), nullable=False,
+                              server_default='classic', default='classic')
+
     # ── Customer password-setup workflow ──────────────────────────────────
     # password_set: False for newly created customer accounts until they
     #               complete the set-password flow via emailed link.