v0.2.1

Added

• Added native momentum event trajectories, event-chain selection, and shot buildup visualization on the tactical board.
• Extended archive format 2.2 with momentum sequence, completion, and trajectory data while retaining read compatibility with 2.1 archives.
• Added match-date metadata parsed from the home team's schedule. Completed archive filenames and the archive list now include the match date and final score.
• Added Full/Half/Recent 15, Home/Away, and All/In Possession/Out of Possession heatmap controls with right-click state selection. #9
• Added individually normalized player heatmaps selected directly from player markers, with independent selection memory for the home and away teams.

Changed

• Replaced heatmap.js with a persistent, demand-rendered PixiJS WebGL heatmap using float density textures, Gaussian blur, and LUT color mapping.
• Made heatmap derivation incremental and allocation-stable for live matches and replay, while keeping comparable home and away team views on a shared color scale.
• Improved momentum chart fills and goal markers, and replaced xG timeline goal tooltips with hover cards.
• Updated the frontend's single-file IIFE build configuration for direct file:// deployment.

Fixed

• Preserved replay state when loading local match archives.
• Normalized match-stat comparison bar widths so home and away values remain visually comparable.

Full Changelog: v0.2.0...v0.2.1