c447dc51ee
Critical fixes: 1. getActivityDetailsRaw never throws on 5xx - returns null immediately 2. Cache-manager preserves existing data when fetch returns null 3. After 5xx error, validate cookie on next request (backend may invalidate sessions) 4. Cookie validation: fetch activity ID 1 to test, re-login if fails This prevents local cache corruption during server outages.
How to Run
copy example.env
cp example.env .env
edit .env
API_USERNAME is your engage username in URL-encode.
API_PASSWORD is your engage password in URL-encode.