Register clinepass provider (OAuth + API-key) using Cline's OpenAI-compatible API with 10 curated models, live /v1/models resolver, refreshCline-based token refresh with workos: prefix, and dashboard OAuth login handler. Reference: https://github.com/jellydn/pi-clinepass-provider Closes #2261 Co-authored-by: Cursor <cursoragent@cursor.com>