Initial commit: Second Brain Platform

Complete platform with unified design system and real API integration.

Apps: Dashboard, Fitness, Budget, Inventory, Trips, Reader, Media, Settings
Infrastructure: SvelteKit + Python gateway + Docker Compose

services/fitness/frontend-legacy/src/app.d.ts

@@ -0,0 +1,5 @@
+declare global {
+	namespace App {}
+}
+
+export {};