chore: scaffold Vite + Svelte 5 + TS project with chess.js and vitest

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -1,7 +1,31 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
 node_modules/
+dist
 dist/
-.superpowers/
-.DS_Store
+dist-ssr
 *.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# Project-specific
+.superpowers/
 *.tsbuildinfo
 GITEA_API.md