feat: Add complete Docker deployment with web-based setup wizard

Major additions:
- Web-based setup wizard (setup.php, setup_wizard.php, setup-wizard.js)
- Production Docker configuration (docker-compose.prod.yml, .env.production)
- Database initialization SQL files (deploy/init_settings.sql)
- Template builder system with drag-and-drop UI
- Advanced features (OAuth, CDN, enhanced analytics, monetization)
- Comprehensive documentation (deployment guides, quick start, feature docs)
- Design system with accessibility and responsive layout
- Deployment automation scripts (deploy.ps1, generate-secrets.ps1)

Setup wizard allows customization of:
- Platform name and branding
- Domain configuration
- Membership tiers and pricing
- Admin credentials
- Feature toggles

Database includes 270+ tables for complete video streaming platform with
advanced features for analytics, moderation, template building, and monetization.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

f_core/config.href.php

@@ -22,7 +22,8 @@ $href = array();
 $href["index"]          = '';
 $href["error"]          = 'error';
 $href["renew"]          = 'renew';
-$href["signup"]         = 'register';
+$href["signup"]         = 'signup';
+$href["register"]       = 'register';
 $href["signin"]         = 'signin';
 $href["signout"]        = 'signout';
 $href["service"]        = 'service';
@@ -30,6 +31,7 @@ $href["reset_password"] = 'reset_password';
 $href["confirm_email"]  = 'confirm_email';
 $href["captcha"]        = 'captcha';
 $href["account"]        = 'account';
+$href["builder"]        = 'builder';
 $href["channels"]       = 'channels';
 $href["channel"]        = 'channel';
 $href["@"]              = 'channel';