Migrate from Quart to Flask and add MariaDB dynamic database

Major Changes:
- Migrated web framework from Quart (async) to Flask (sync)
- Added MariaDB database integration with SQLAlchemy ORM
- Implemented dynamic content management for portfolio

New Features:
- Database models for Profile, Skills, Projects, ProjectTags, and SocialLinks
- RESTful API endpoints for CRUD operations on all entities
- Database initialization script (init_db.py) with sample data
- Docker Compose configuration with MariaDB service

Modified Files:
- app.py: Replaced Quart with Flask, added database initialization
- config.py: Added database configuration with environment variables
- routes/home.py: Converted async to sync, added database queries
- requirements.txt: Replaced Quart/Hypercorn with Flask/Gunicorn, added Flask-SQLAlchemy and PyMySQL
- docker-compose.yml: Added MariaDB service with health checks
- templates/: Updated all templates to use dynamic data from database with Jinja2
- .env.example: Added database configuration variables
- README.md: Complete rewrite with new setup instructions and API documentation

New Files:
- models.py: SQLAlchemy models for all database entities
- init_db.py: Database initialization script
- routes/api.py: REST API endpoints for content management

Benefits:
- Simplified architecture (sync vs async)
- Better ecosystem compatibility
- Dynamic content management via database
- Easy content updates through REST API
- Improved deployment with standard WSGI server (Gunicorn)

app.py

@@ -3,31 +3,43 @@
 
 # Copyright Hersel Giannella
 
-from quart import Quart, send_from_directory
+from flask import Flask, send_from_directory
 from config import config
+from models import db
 from routes.home import route_home
+from routes.api import route_api
 
-app = Quart(
+app = Flask(
     __name__,
     template_folder="templates",
     static_folder="static",
 )
 
+# Load configuration
+app.config['SECRET_KEY'] = config.SECRET_KEY
+app.config['SQLALCHEMY_DATABASE_URI'] = config.SQLALCHEMY_DATABASE_URI
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = config.SQLALCHEMY_TRACK_MODIFICATIONS
+app.config['SQLALCHEMY_ECHO'] = config.SQLALCHEMY_ECHO
+
+# Initialize database
+db.init_app(app)
+
 # favicon.ico, sitemap.xml and robots.txt
 @app.route('/favicon.ico')
-async def favicon():
-    return await send_from_directory(app.static_folder, 'favicon.ico')
+def favicon():
+    return send_from_directory(app.static_folder, 'favicon.ico')
 
 @app.route('/sitemap.xml')
-async def sitemap():
-    return await send_from_directory(app.static_folder, 'sitemap.xml')
+def sitemap():
+    return send_from_directory(app.static_folder, 'sitemap.xml')
 
 @app.route('/robots.txt')
-async def robots():
-    return await send_from_directory(app.static_folder, 'robots.txt')
+def robots():
+    return send_from_directory(app.static_folder, 'robots.txt')
 
 # BluePrint Routes
 app.register_blueprint(route_home)
+app.register_blueprint(route_api)
 
 if __name__ == '__main__':
     app.run(debug=config.DEBUG, host=config.APP_HOST, port=config.APP_PORT)