Feature/contract history

[sAVItar02]

📝 Contract History Feature

Overview

This feature introduces a Contract History system that allows users to view, manage, and re-generate their previously created contracts.
It enhances the user experience by adding persistence and organization tools within the chatbot interface.

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✨ Features

• View Contract History: Users can see all previously generated contracts with metadata (name, date, type).
• Favorites: Mark and unmark contracts as favorites for quick access.
• Re-Generation: Re-generate contracts directly from history.
• Persistent Storage: Contract data is saved using Local Storage to persist across browser sessions.
• Error Handling: Graceful fallback and handling for local storage operations.
• Type Safety: Added TypeScript interfaces for strong typing and better maintainability.

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🧩 Technical Details

Files Added

• src/pages/NotFoundPage — UI component displayed when a user visits a non-existent route.
• src/hooks/useHistory.ts — Custom React hook for handling contract storage, state, read, and delete.
• src/hooks/useFavorites.ts — Holds all the favoriting state and functions.
• src/hooks/useMessages.ts — Moved all the messaging logic from the chatbot page to this hook.
• src/components/Sidebar.tsx — UI Sidebar Component and all its logic.
• src/components/ChatItem.tsx — UI Component that's displayed as a chat item on the sidebar.
• src/assets/compass.png — Compass Image for the NotFoundPage.

Files Modified

• src/services/Chatbot.tsx — Integrated contract history functionality.
• src/components/ui/chatbot.css — Modified templates and chat page styles.
• src/services/deepseekService.ts — Used the variable in env file instead of hardcoded ones
• scr/components/TemplateSelector.tsx — Moved the templates into a modal and the Button into the sidebar

Technologies Used

• React
• TypeScript
• Local Storage
• State Management

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