Add README, .gitignore, requirements, and license

Author: SM_SAYEED

.gitignore.txt

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+patterns-matter.db
+uploads/
+__pycache__/
+*.pyc
+.env

README.md.txt

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+# Patterns Matter Data Portal
+
+This is a Flask web portal for materials science datasets and original music clips, developed by Sayeed.
+
+## Features
+
+- Materials datasets (bandgap, formation energy, melting point, oxidation state)
+- Music & guitar clip upload, preview, and download
+- Admin dashboard with file management
+- Search datasets and clips by keyword
+- SQL query tool (admin)
+- Supports inline edit and file delete (admin)
+
+## Quick Start
+
+1. Install requirements: pip install -r requirements.txt
+2. Run the app:
+3. Open [http://localhost:5000](http://localhost:5000)
+
+## Project Structure
+app.py
+static/
+templates/
+uploads/ # (excluded from repo)
+patterns-matter.db # (excluded from repo)
+
+## License
+
+MIT 
+
+## Contact
+
+Sayeed Shahriar  
+[email protected]
+