Fix: Method Not Allowed ve auth error handling iyileştirmeleri

Improve error handling: Better auth error messages with Settings link

Fix: Import path düzeltmesi (flows/[id]/run)

B3: İlk ekranlar (Phase 1 bitiş kriteri)

B2: /me endpoint eklendi ve test UI'ı eklendi

B2: Studio Auth (Core API key ile)

B1: Core bağlantısını sağlamlaştır - Server-side proxy pattern ve güvenlik güncellemeleri

Refactor Home component to use hooks for health fetch

Refactor GET function in core-health route

Create route.ts

Delete app/api/core directory

Refactor health check API call in Home component

Update route.ts

Refactor fetch URL and clean up JSX formatting

Refactor health check fetching in Home component

Create route.ts

Add health check functionality to Home component

Create layout.tsx