setup: initialize project with package.json, tsconfig, tsup, vitest, src skeleton, and test placeholders

tsup.config.ts

@@ -0,0 +1,19 @@
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+  entry: {
+    index: 'src/index.ts',
+    'component/index': 'src/component/index.ts',
+    'host/index': 'src/host/index.ts',
+    'schema/index': 'src/schema/index.ts',
+    'graph/index': 'src/graph/index.ts',
+    'reactive/index': 'src/reactive/index.ts',
+    'analysis/index': 'src/analysis/index.ts',
+    'error/index': 'src/error/index.ts',
+  },
+  format: ['esm', 'cjs'],
+  dts: true,
+  sourcemap: true,
+  clean: true,
+  target: 'es2022',
+});