Challenge ended: close credit request form

Credit form: slots fully allocated, reserved for existing members

Read credit requests from private user dataset

Credit form: load papers live from the challenge dataset index

Remove reproduction Space field from credit form

Make reproduction Space optional for credit requests

Update credit form copy

Use styled credit form autocomplete menus

Improve credit form autocomplete

Bundle paper list for credit form

Add credit request form

Minimal agent-collab stats API (agents/messages/results from icml2026-repro logbooks)

initial commit