feat: initialize TypeScript configuration and Vitest setup

- Add pnpm workspace configuration to specify built dependencies.
- Create tsconfig.json for TypeScript compiler options and module resolution.
- Add tsconfig.build.json for build-specific TypeScript settings.
- Set up Vitest configuration with path aliasing for testing.

.vscode/extensions.json

@@ -0,0 +1,5 @@
+{
+	"recommendations": [
+		"biomejs.biome",
+	]
+}

.vscode/settings.json

@@ -0,0 +1,12 @@
+{
+	"[typescript]": {
+		"editor.defaultFormatter": "biomejs.biome",
+		"editor.formatOnSave": true
+	},
+	"editor.formatOnSave": true,
+	"search.exclude": {
+		"**/.git/": true,
+		"**/node_modules/": true,
+		"**/dist/": true
+	}
+}