updated solution

models/clear_db.py

@@ -0,0 +1,21 @@
+import os
+from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
+
+# Ensure the instance directory exists (relative to project root)
+instance_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'instance'))
+os.makedirs(instance_dir, exist_ok=True)
+
+# Set the correct database URI
+db_path = os.path.join(instance_dir, 'dashboard.db')
+print(f"Using database at: {db_path}")
+
+app = Flask(__name__)
+app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{db_path}'
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+db = SQLAlchemy(app)
+
+with app.app_context():
+    db.reflect()  # This loads all tables from the database
+    db.drop_all()
+    print("Dropped all tables successfully.")