node-appwrite 23.1.0 ships a bundled undici Agent via node-fetch-native-with-agent.
That bundle uses an older undici dispatcher API that crashes on Node 26 with
'invalid onError method' (UND_ERR_INVALID_ARG), making every Appwrite call
fail with 'fetch failed' / our user-facing 'Bağlantı hatası' fallback.
The patch replaces createAgent/createFetch with thin pass-throughs to
globalThis.fetch — Node native fetch handles HTTPS to db.kovaksoft.com
directly, no proxy/agent customization needed. Verified end-to-end via
users.listMemberships against the live project.
Also added dev-mode error surfacing in appwriteError so future SDK
exceptions show the real message instead of 'Bağlantı hatası'.
Sign-in form now has a Klinik / Laboratuvar pill toggle (defaults to clinic).
The selected kind is posted alongside email+password; the server action
resolves the user's memberships, picks a tenant_settings row matching the
chosen kind, and sets it as active. If no matching tenant exists the session
is rolled back with a clear error.
Invite-flow logins skip the kind check — invite code drives team assignment.
kovakmedya