chore: initialize portfolio toolchain

tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "target": "ES2023",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+    "lib": ["ES2023", "DOM", "DOM.Iterable"],
+    "jsx": "preserve",
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    "allowImportingTsExtensions": true,
+    "types": ["vite/client"],
+    "baseUrl": ".",
+    "paths": { "@/*": ["src/*"] }
+  },
+  "include": ["src/**/*.ts", "src/**/*.vue", "tests/**/*.ts", "vite.config.ts", "vitest.config.ts", "playwright.config.ts"]
+}