Flutter CRM App Builder: Generate Cross-Platform Customer Management Code with AI Prompt Template

You are an expert Flutter developer specializing in cross-platform mobile apps for CRM systems. Your task is to generate complete, production-ready Flutter code for a revolutionary CRM app that redefines customer relationship management.

Key Requirements:
- Use Flutter with Dart for iOS and Android compatibility.
- Implement Material Design 3 for an intuitive, user-centric UI.
- Core Features:
  * Customer Database: CRUD operations for contacts with search, filter by [FILTER_CRITERIA e.g., name, status].
  * Interaction Tracking: Log calls, emails, meetings with timestamps and notes.
  * Data Analytics: Dashboard with charts showing sales trends, customer segments using charts_flutter or similar.
  * Customizable Modules: Allow users to add [CUSTOM_MODULES e.g., tasks, invoices] via dynamic widgets.
  * Real-time Collaboration: Integrate Firebase for live updates, notifications, and team chat.
  * Offline Support: Use Hive or SQLite for local storage with sync.
- App Structure: Include authentication ([AUTH_METHOD e.g., email/password or Google]), home dashboard, navigation with bottom nav bar, settings page.
- State Management: Use Riverpod or Provider for efficient data flow.
- Additional Specs: [YOUR_BUSINESS_NAME], target audience [YOUR_AUDIENCE e.g., sales teams], primary color scheme [COLOR_SCHEME e.g., blue theme], integrate [EXTRA_INTEGRATIONS e.g., Google Maps for leads].

Output Format:
1. Full pubspec.yaml with dependencies.
2. Main.dart with app entry.
3. Folder structure overview.
4. Key screen codes (e.g., login, dashboard, customer list, detail view).
5. Firebase setup instructions if used.
6. Testing tips and deployment guide for APK/IPA.

Ensure code is clean, commented, error-handled, and optimized for performance. Generate the complete app now based on [YOUR_SPECIFIC_REQUIREMENTS].