feat: Add scripts to remove the JSON persistent storage.

delete-storage.bat

@@ -0,0 +1,26 @@
+@echo off
+REM delete-storage.bat
+REM Deletes the Millions JSON storage for resetting app state
+REM The storage file location is chosen by StorageFile.java
+
+SET "STORAGE_FOLDER_NAME=Millions"
+SET "STORAGE_FILE=storage.json"
+
+REM Use %APPDATA% if set, otherwise fallback to %USERPROFILE%
+IF DEFINED APPDATA (
+    SET "STORAGE_DIR=%APPDATA%\%STORAGE_FOLDER_NAME%"
+) ELSE (
+    SET "STORAGE_DIR=%USERPROFILE%\%STORAGE_FOLDER_NAME%"
+)
+
+SET "STORAGE_PATH=%STORAGE_DIR%\%STORAGE_FILE%"
+
+IF EXIST "%STORAGE_PATH%" (
+    ECHO Deleting storage at %STORAGE_PATH% ...
+    DEL /F "%STORAGE_PATH%"
+    ECHO Storage deleted.
+) ELSE (
+    ECHO Storage not found at %STORAGE_PATH%.
+)
+
+PAUSE

delete-storage.sh

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+#!/usr/bin/env bash
+# delete-storage.sh
+# Deletes the Millions JSON storage  for resetting app state
+# The storage file location is chosen by StorageFile.java
+
+set -e
+
+STORAGE_FOLDER_NAME="Millions"
+STORAGE_FILE="storage.json"
+
+OS=$(uname | tr '[:upper:]' '[:lower:]')
+HOME_DIR="$HOME"
+
+# Determine database folder path based on OS
+if [[ "$OS" == *"darwin"* ]]; then
+  # macOS
+  STORAGE_DIR="$HOME_DIR/Library/Application Support/$STORAGE_FOLDER_NAME"
+elif [[ "$OS" == *"linux"* ]]; then
+  # Linux / Unix
+  STORAGE_DIR="$HOME_DIR/.local/share/$STORAGE_FOLDER_NAME"
+elif [[ "$OS" == *"mingw"* || "$OS" == *"cygwin"* || "$OS" == *"msys"* ]]; then
+  # Windows (Git Bash, Cygwin, MSYS)
+  if [[ -n "$APPDATA" ]]; then
+    STORAGE_DIR="$APPDATA/$STORAGE_FOLDER_NAME"
+  else
+    STORAGE_DIR="$HOME_DIR/$STORAGE_FOLDER_NAME"
+  fi
+else
+  echo "Unsupported OS: $OS"
+  exit 1
+fi
+
+STORAGE_PATH="$STORAGE_DIR/$STORAGE_FILE"
+
+if [[ -f "$STORAGE_PATH" ]]; then
+  echo "Deleting storage at $STORAGE_PATH ..."
+  rm "$STORAGE_PATH"
+  echo "Storage deleted."
+else
+  echo "Storage not found at $STORAGE_PATH"
+fi
+