{"ok": true, "service": "schwab-token", "version": "1.1", "hint": "POST full Schwab /v1/oauth/token JSON body here. Also accepts Bearer header or access_token fields.", "endpoints": ["POST /callback  (full OAuth payload)", "GET  /getschwab?key=...  (access token)", "GET  /payload?key=...    (entire stored JSON)", "GET  /payload_meta?key=... (key names/types/lens only)", "GET  /health"], "expected_schwab_token_keys": ["access_token", "refresh_token", "token_type", "expires_in", "scope", "id_token?", "refresh_token_expires_in?"]}