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

tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022"],
+    "module": "Node16",
+    "moduleResolution": "Node16",
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "strict": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "erasableSyntaxOnly": true
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules", "dist", "test"]
+}