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)

routes/home.py

@@ -3,10 +3,24 @@
 
 # Copyright Hersel Giannella
 
-from quart import Blueprint, render_template
+from flask import Blueprint, render_template
+from models import Profile, Skill, Project, SocialLink
 
 route_home = Blueprint('route_home', __name__)
 
 @route_home.route('/')
-async def home():
-    return await render_template('index.html')
+def home():
+    """Render home page with dynamic data from database"""
+    # Fetch all data from database
+    profile = Profile.query.first()
+    skills = Skill.query.filter_by(is_active=True).order_by(Skill.display_order).all()
+    projects = Project.query.filter_by(is_published=True).order_by(Project.display_order).all()
+    social_links = SocialLink.query.filter_by(is_active=True).order_by(SocialLink.display_order).all()
+
+    return render_template(
+        'index.html',
+        profile=profile,
+        skills=skills,
+        projects=projects,
+        social_links=social_links
+    )