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>

templates.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * Template Builder - User Entry Point
+ *
+ * This page provides access to the template builder system
+ */
+
+// Include core configuration
+require_once dirname(__FILE__) . '/f_core/config.core.php';
+
+// Check if user is logged in
+if (!isset($_SESSION['USER_ID']) || $_SESSION['USER_ID'] <= 0) {
+    header('Location: /signin.php?redirect=' . urlencode($_SERVER['REQUEST_URI']));
+    exit;
+}
+
+// Redirect to the template manager
+header('Location: /f_modules/m_backend/template_manager.php');
+exit;