Document distractor discrimination; write the two supplement captions

Add the operator x complexity composition table

Add TRP/CCR scorers and a quickstart; state train-split, template and point-in-time scope

Describe reference systems by architecture, not by system name

Add reference-retriever spec and retrieval-determinism sections

Add retrieval-determinism section; correct the regeneration instructions

Add per-question low-confidence flags for the IAA pilot

Add the deterministic construction pipeline

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