feat: implement core course platform UI and logic

- Add project configuration and git ignore rules
- Implement App router with protected routes
- Develop course player, grid, and card components
- Add state management for course progress and navigation
- Initialize database services for course and comment data

metadata.json

@@ -0,0 +1,8 @@
+{
+  "name": "Compor HUB",
+  "description": "Portal de Cursos e Central de Download de Materiais (PDFs, Planilhas, Modelos e Checklists) para Gestão de Tráfego Pago e Performance.",
+  "requestFramePermissions": [],
+  "majorCapabilities": [
+    "MAJOR_CAPABILITY_SERVER_SIDE_GEMINI_API"
+  ]
+}