Add piecing it together practice exercise#2961

Merged

kahgoh merged 11 commits intoexercism:mainfrom

zamora-carlos:add-piecing-it-together-practice-exercise

Jun 27, 2025

Commits on Jun 23, 2025

Refactor JigsawInfo builder to use Optionals and fix piecing-it-together style issues
zamora-carlos
committed

Commits on Jun 25, 2025

Replace getFirst() with get(0) to fix incompatibility with JDK 17 in piecing-it-together
zamora-carlos
committed