1.1.18

• Remove code and settings that had no effect: the bar ids that each board kept but nothing read, an unreachable branch in quick sort, unreferenced id attributes on the count and speed labels, the curly and no-extra-semi rules that eslint-config-prettier already turned off, the --ext flag in the lint scripts, vite.config.ts (which does not exist) in tsconfig.eslint.json, a duplicate .dockerignore entry, the empty postCreateCommand in the dev container, and a commented-out PARCEL_WATCH_INTERVAL that Parcel does not read. (#66)
• Align the README, AGENTS.md, the add-sort-algorithm skill and code comments with the code, and add comments on why bar heights use the initial maximum, how quick sort chooses and places the pivot, and why the i18n Promises are not awaited. (#66)
• Validate type checking, lint, formatting, 26 tests and the production build. Confirm that the bundle differs from 1.1.17 only by the removed code, that all four algorithms produce the same steps as before for every array of up to 7 values and for sorted, reversed and duplicate-heavy inputs, and that the page and every playback step match the previous version in Japanese and English. In production, confirm that the page serves this build and playback runs to completion.