chore: add dist files and .npmignore for npm distribution

- Include dist/ in git for npm package distribution
- Add .npmignore to exclude source files from npm package
- This ensures npm install from git works without requiring build

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

.npmignore

@@ -0,0 +1,47 @@
+# Source files
+src/
+
+# Config files
+tsconfig.json
+tsup.config.ts
+
+# Dev dependencies config
+.eslintrc*
+.prettierrc*
+jest.config.*
+vitest.config.*
+
+# Test files
+*.test.ts
+*.spec.ts
+__tests__/
+test/
+tests/
+
+# Docs
+*.md
+!README.md
+
+# Git
+.git/
+.gitignore
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log
+npm-debug.log*
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Local env
+.env*