[STORY] Save/Load Game System - COMPLETED

[seheart]

Story Description

Implement a reliable save and load system that allows users to persist their farming progress and resume learning sessions across multiple application launches.

Acceptance Criteria

• Save Game functionality from main menu and pause menu
• Load Game functionality with file selection
• Automatic progress persistence including farm state
• Error handling for corrupted or missing save files
• User feedback for save/load operations
• Save validation prevents data loss
• Multiple save file support

Current Implementation Status

✅ COMPLETED - Reliable local file-based save system

Technical Details

• Implemented with save_game() and load_game() methods
• Local file storage for offline capability
• Proper error handling and user messaging
• Maintains game state integrity across sessions

Related Issues

Part of epic #1 - Complete Main Menu System

Educational Value

Enables progressive learning over multiple sessions, critical for educational environments with limited class time.