fix(backup): nettoyer le fichier temporaire en cas d'erreur dans restore (#89)

Wraps temp file operations in try/except to ensure the temporary database file is always cleaned up, even if an exception occurs during write_snapshot or verify_integrity.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

test_aggrid.py

@@ -0,0 +1,26 @@
+import dash_ag_grid as dag
+import pandas as pd
+from dash import Dash, html
+
+df = pd.read_csv(
+    "https://raw.githubusercontent.com/plotly/datasets/master/gapminder2007.csv"
+)
+
+app = Dash()
+
+columnDefs = [
+    {"field": "country", "filter": True},
+    {"field": "pop", "headerName": "Population"},
+    {"field": "lifeExp", "headerName": "Life Expectancy", "filter": True},
+]
+
+grid = dag.AgGrid(
+    id="getting-started-filter",
+    rowData=df.to_dict("records"),
+    columnDefs=columnDefs,
+)
+
+app.layout = html.Div([grid])
+
+if __name__ == "__main__":
+    app.run(debug=True)