LabKlyra: Find the groups that were always there

Klyra is an animated k-means clustering tool that discovers natural groupings in a set of points and runs the algorithm to convergence before your eyes. The signature technique is Lloyd's algorithm with k-means++ seeding, inertia tracking, and best-of-N restarts, anchored by tests on the monotonic-inertia guarantee and reliable recovery of well-separated blobs. It is a from-scratch, dependency-light build you can download and run locally.