feat: update assessment portal

app/models.py

@@ -36,3 +36,28 @@ class UploadRecord(db.Model):
     upload_time = db.Column(db.DateTime, default=datetime.utcnow)
 
     user = db.relationship("User", backref=db.backref("uploads", lazy=True))
+
+
+class AppSetting(db.Model):
+    __tablename__ = "app_settings"
+
+    id = db.Column(db.Integer, primary_key=True)
+    key = db.Column(db.String(100), unique=True, nullable=False)
+    value = db.Column(db.String(255), nullable=False)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    @classmethod
+    def get_bool(cls, key: str, default: bool = False) -> bool:
+        setting = cls.query.filter_by(key=key).first()
+        if setting is None:
+            return default
+        return setting.value.strip().lower() in {"1", "true", "yes", "on"}
+
+    @classmethod
+    def set_bool(cls, key: str, value: bool) -> "AppSetting":
+        setting = cls.query.filter_by(key=key).first()
+        if setting is None:
+            setting = cls(key=key, value="")
+            db.session.add(setting)
+        setting.value = "true" if value else "false"
+        return setting