trim dead paths: one-level-up layout, JVE/MIMO env knobs shadowed by the /data fast path, CKPT_ROOT detector fallback, jve_p indirection, error.left_s the client never reads; docstring ladder para lives at ws()
acquisition ladder: visitor 60/30/10 then app pool 60/30/10 on quota refusals; client shows pool/seconds/2x for wait+grant; lease expiry is a normal end, not an error; busy vs quota split; /ws honors maintenance
speak the zerogpu-headers postMessage handshake with the huggingface.co parent (gradio protocol); /mint stashes the parent-minted quota headers, /ws redeems the ticket
native gradio lease path (LTX-style): frontend claims the GPU via a real gradio queue endpoint (ZeroGPU handshake = personal billing/PRO priority); direct ladder kept as 6s fallback
adaptive lease ladder (120/55/25s per tier): the scheduler caps requests at the identity's remaining balance, so a fixed duration locks out low-balance identities entirely