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.json

@@ -1,4 +1,11 @@
 {
   "files": [],
-  "references": [{ "path": "./tsconfig.node.json" }, { "path": "./tsconfig.app.json" }]
+  "references": [{ "path": "./tsconfig.node.json" }, { "path": "./tsconfig.app.json" }],
+  "compilerOptions": {
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"]
+    },
+    "ignoreDeprecations": "6.0"
+  }
 }