Add Minesweeper game to the arcade

[Copilot]

Adds a fully-featured Minesweeper game to the arcade alongside Snake, 2048, Tetris, and Flappy Bird.

Changes Made

• src/components/MinesweeperGame.tsx — New game component with:
  • 3 difficulty levels: Beginner (9×9, 10 mines), Intermediate (16×16, 40 mines), Expert (30×16, 99 mines)
  • Safe first click — mines are placed after the first click, avoiding the clicked cell and its neighbors
  • Left-click to reveal, right-click to flag 🚩, chord-click to auto-reveal neighbors
  • BFS flood-fill auto-reveal for zero-adjacent-mine cells
  • Live timer (starts on first click, freezes on win/loss)
  • Mine counter and smiley face reset button (😊 / 😎 won / 😵 lost)
  • Number coloring (1=blue, 2=green, 3=red, etc.) and full mine reveal on loss
  • Keyboard shortcuts: R = reset, N = cycle difficulty
  • Full accessibility: role="application", per-cell aria-label, aria-live status region
• src/components/MinesweeperGame.test.tsx — 7 unit tests (render, mine counter, reset button, grid cells, flag placement)
• src/App.tsx — Added "minesweeper" view type, import, callback, and render block
• src/components/Home.tsx — Added purple 💣 arcade cabinet navigation card

Screenshots

Home screen with Minesweeper card:

Minesweeper game (Beginner 9×9):

Testing

• ✅ npm run build — 0 TypeScript errors
• ✅ npm run lint — 0 warnings
• ✅ npm run test:run — 7/7 tests pass

Original prompt

Add a minesweeper game to the arcade

The user has attached the following file paths as relevant context:

• .github\copilot-instructions.md

Created from VS Code.

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[cwebster-99]

@copilot The PR doesnt show any files changes. commit the added files to the branch for review

[Copilot]

@copilot The PR doesnt show any files changes. commit the added files to the branch for review

Done — all files are now committed in 4b904c9.

Home screen (Minesweeper card visible below Flappy Bird):

Minesweeper game (Beginner 9×9, mine counter, timer, difficulty selector):

Files added/changed:

• src/components/MinesweeperGame.tsx — full game (safe first click, flood fill, flagging, chord click, timer, 3 difficulties)
• src/components/MinesweeperGame.test.tsx — 7 unit tests
• src/App.tsx — added "minesweeper" route
• src/components/Home.tsx — added purple 💣 arcade cabinet card