Replace algebraic integers with Lean-GAP exercise DF_10_2_1 from the supplied Formal.tar. Preserve its original formal statement byte for byte and package it with the shared Harbor submission, environment and separate Comparator verifier. Keep absolute profinite rigidity as the research task. Update generation, bundled source inventories, initialization and image task-count checks for the mixed sample. Add qualitative difficulty levels and the RL-environment/expert-authored-data messaging; record local validation without shipping test proofs.
Focus sample documentation on two tasks and running environments
Rewrite the dataset card as a concise Desargues sample handoff, remove standalone sources and licensing sections, fix the download and task examples, and clarify environment delivery and validation. Align supporting documentation and package descriptions with the two-task subset; label full-release runtime reports as historical. Preserve task payloads and license files.
Include absolute profinite rigidity and algebraic integers from desargues-hf/annals-math-rl at 47c059fff6899b996f32aaaf12dc27a74a2cc7a3. Preserve README, documentation, licensing and selected mathematical files. Trim task indexes and all bundled challenge/source inventories to these two tasks.
