feat: install shadcn-vue components for the portfolio + form surface

Adds button, card, input, textarea, label, select, form, sheet,
dialog, sonner, separator, aspect-ratio, dropdown-menu — the set
needed for the layout, project lightbox, and contact form.

Hoists baseUrl + paths into the root tsconfig.json so shadcn-vue's
CLI can resolve aliases (it reads the root config, not the app one).
Sets ignoreDeprecations="6.0" since TypeScript 6 warns about baseUrl
even though the CLI still requires it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tsconfig.app.json

@@ -4,6 +4,7 @@
   "exclude": ["src/**/__tests__/*"],
   "compilerOptions": {
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+    "baseUrl": ".",
     "paths": {
       "@/*": ["./src/*"]
     }