refactor: transition from MCP to REST API for portfolio data

- Removed MCP server integration and related components from index.vue and contact.json.
- Updated project documentation to reflect the new ArtAPI server, including changes to project metadata and descriptions.
- Eliminated MCP toolkit dependencies from nuxt.config.ts and package.json.
- Introduced new REST API endpoints for chat prompts, replacing previous MCP prompts.
- Deleted obsolete MCP resources and prompts, streamlining the codebase for a more focused API approach.

package.json

@@ -16,7 +16,6 @@
     "@nuxt/eslint": "1.12.1",
     "@nuxt/ui": "^4.2.1",
     "@nuxthub/core": "0.10.2",
-    "@nuxtjs/mcp-toolkit": "0.5.2",
     "better-sqlite3": "^12.5.0",
     "drizzle-kit": "^0.31.8",
     "drizzle-orm": "^0.45.1",