Add HTTPS support with Caddy and clean up legacy files

- Add Caddy reverse proxy for automatic HTTPS with Let's Encrypt
- Update docker-compose.yml with Caddy service and internal networking
- Remove all Redis dependencies (not needed for this deployment)
- Fix Dockerfile permissions for instance and uploads directories
- Move legacy scripts to old_code_documentation folder
  - add_muted_column.py, check_fix_player.py, migrate_add_edit_enabled.py
  - docker-start.sh, run_dev.sh, start.sh, clean_for_deployment.sh
- Add HTTPS_SETUP.md documentation for Caddy configuration
- Update .env.example with DOMAIN and EMAIL variables
- Remove redis package from requirements.txt
- Remove rate limiting Redis storage from config.py

old_code_documentation/add_muted_column.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+"""Add muted column to playlist_content table."""
+from app.app import create_app
+from app.extensions import db
+
+def add_muted_column():
+    """Add muted column to playlist_content association table."""
+    app = create_app()
+    
+    with app.app_context():
+        try:
+            # Check if column already exists
+            result = db.session.execute(db.text("PRAGMA table_info(playlist_content)")).fetchall()
+            columns = [row[1] for row in result]
+            
+            if 'muted' in columns:
+                print("ℹ️  Column 'muted' already exists in playlist_content table")
+                return
+            
+            # Add muted column with default value True (muted by default)
+            db.session.execute(db.text("""
+                ALTER TABLE playlist_content 
+                ADD COLUMN muted BOOLEAN DEFAULT TRUE
+            """))
+            db.session.commit()
+            print("✅ Successfully added 'muted' column to playlist_content table")
+            print("   Default: TRUE (videos will be muted by default)")
+        except Exception as e:
+            db.session.rollback()
+            print(f"❌ Error adding column: {e}")
+
+if __name__ == '__main__':
+    add_muted_column()