Игра «Портфель инвестора» принята по ТЗ: ревью @kwistren, приёмка автором @borzz.

Исправил замечания

Update: script.js

Update: index.html, style.css

docs: fill TASK.md and team roles in README

fix: guard empty freeCells and reset spawn timer on game end

docs: describe rules and controls

feat: implement defect spawning, scoring and integrity

feat: add game screens and museum styles

docs: fill TASK.md and team roles in README

docs: fill TASK.md for portfolio game