feat: implement full-screen intelligent crop rotation planner with N-…

[Dbansal06]

Overview

This PR implements a comprehensive Soil Health & Crop Rotation module. It moves the project beyond static displays by introducing an analytical engine that provides scientific feedback on planting choices.

Changes Made

• Logic Engine: Built SoilRecoveryEngine to track nutrient depletion/fixation.
• Modern Dashboard: Added a full-screen UI with CSS-driven status cards (Green for stable, Red for depletion).
• Clean Architecture: Followed the server/Routes/ and server/Utils/ patterns for scalability.
• RESTful API: Implemented a POST endpoint for real-time analysis without page refreshes.

File Summary

• server/Utils/soil_analysis_logic.py: The analytical brain.
• server/Routes/rotation_routes.py: Flask API handlers.
• crop_rotation.html & css/rotation_planner.css: High-fidelity UI.
• js/rotation_engine.js: Frontend state management and API calls.
• server/models/crop_database.json: Scientific N-P-K metadata.

Testing Instructions

1. Run python app.py.
2. Navigate to /rotation.
3. Enter soil values (e.g., N: 20, P: 10, K: 20).
4. Select "Corn" and observe the depletion warning.
5. Select "Soybeans" and observe the Nitrogen recovery feedback.

Closes #1462

Please review and merge and if there is any changes required please let me know.
Thanks!

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[github-actions]

Thanks for creating a PR for your Issue! ☺️

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In the meantime, please double-check the file changes and ensure that all commits are accurate.

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[github-actions]

🎉 Congrats @Dbansal06 on getting your PR merged! 🙌
Thanks for the contribution — looking forward to more from you 🚀