chore(shadcn): fix tsconfig + components.json for current CLI

The shadcn-vue CLI (verified against
https://www.shadcn-vue.com/docs/installation/vite) requires path
aliases declared with both baseUrl and paths in tsconfig.json AND
tsconfig.app.json. Without baseUrl the CLI's resolvedPaths validator
fails with:

  Validation failed:
  - resolvedPaths: Required,Required,Required,Required,Required

(one Required per declared alias under "aliases" in components.json).

Also drop two stale keys from components.json that newer shadcn-vue
schema versions reject:

  - "framework": "vite"   → no longer part of the schema
  - "tailwind.config": "" → empty string fails validation; field is
                            optional for Tailwind 4 (no JS config file)

After this commit, "pnpm dlx shadcn-vue@latest add <component>"
succeeds out of the box.

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

components.json

@@ -3,13 +3,11 @@
   "style": "default",
   "typescript": true,
   "tailwind": {
-    "config": "",
     "css": "src/style.css",
     "baseColor": "neutral",
     "cssVariables": true,
     "prefix": ""
   },
-  "framework": "vite",
   "aliases": {
     "components": "@/components",
     "composables": "@/composables",

tsconfig.app.json

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

tsconfig.json

@@ -1,4 +1,10 @@
 {
   "files": [],
-  "references": [{ "path": "./tsconfig.node.json" }, { "path": "./tsconfig.app.json" }]
+  "references": [{ "path": "./tsconfig.node.json" }, { "path": "./tsconfig.app.json" }],
+  "compilerOptions": {
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  }
 }