chore: monorepo scaffold and shared config

Workspace setup with pnpm, Vite+, and shared TypeScript config.
Includes @vue-tui/utils and AGENTS.md project conventions.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,31 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# AI agent worktrees
+.claude/worktrees/
+
+# Superpowers
+docs/superpowers/
+tmp/