scaffold blog_portal vue 3 + pinia + cypress frontend

Mirrors youngstartup/frontend/startups_portal scaffolding:
Vite, Vue 3 (composition API + script setup), TypeScript strict,
Pinia, Vue Router 5, oxlint + eslint + oxfmt, and Cypress with
db:reset / db:seed tasks. Views and the auth store are stubs
filled in by the next branches; routes and the header chrome
are wired so the build passes.

frontend/blog_portal/tsconfig.node.json

@@ -0,0 +1,27 @@
+// TSConfig for modules that run in Node.js environment via either transpilation or type-stripping.
+{
+  "extends": "@tsconfig/node24/tsconfig.json",
+  "include": [
+    "vite.config.*",
+    "vitest.config.*",
+    "cypress.config.*",
+    "playwright.config.*",
+    "eslint.config.*"
+  ],
+  "compilerOptions": {
+    // Most tools use transpilation instead of Node.js's native type-stripping.
+    // Bundler mode provides a smoother developer experience.
+    "module": "preserve",
+    "moduleResolution": "bundler",
+
+    // Include Node.js types and avoid accidentally including other `@types/*` packages.
+    "types": ["node"],
+
+    // Disable emitting output during `vue-tsc --build`, which is used for type-checking only.
+    "noEmit": true,
+
+    // `vue-tsc --build` produces a .tsbuildinfo file for incremental type-checking.
+    // Specified here to keep it out of the root directory.
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo"
+  }
+}