Connectivity & Session Probes

The frontend has a small “probe” module (src/api/testConnection.ts) used for cheap health and session validity checks.

Backend/DB connectivity check

testConnection() calls a low-cost health endpoint (/api/health/db) and returns a boolean: - true on HTTP 200 - false on any error

This is suitable for “is the system up?” UI checks without exposing detailed errors.

checkSession() calls /api/me and returns: - the user profile on success - null when unauthenticated or the request fails

Important boundary: - /api/me is treated as a probe endpoint and should not trigger global redirects (the HTTP client explicitly exempts it).