fix: add .npmignore to ensure dist is published

Author: johnlindquist

.npmignore

@@ -0,0 +1,33 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Src files - only publish built files
+src/
+
+# Build artifacts
+*.tsbuildinfo
+
+# Test files
+*.test.ts
+*.spec.ts
+
+# Config files
+.eslintrc.cjs
+.prettierrc
+vitest.config.ts
+tsconfig.json
+
+# CI/CD
+.github/
+
+# Misc
+.vscode/
+
+# Explicitly include the distribution directory
+!dist