Feature/Use fastify instead of express (#1)

- Replaced Apollo Server with Mercurius for GraphQL API
- Updated resolvers to use Mercurius-compatible GraphQL implementation
- Migrated from Express to Fastify for server framework
- Improved error handling with GraphQL error extensions
- Added Zod for environment variable validation
- Updated Prisma schema and migrations
- Configured CORS and WebSocket subscriptions
- Simplified GraphQL schema and resolver structure
- Enhanced type safety and code organization
- Replaced Apollo Server with Mercurius for GraphQL API
- Updated resolvers to use Mercurius-compatible GraphQL implementation
- Migrated from Express to Fastify for server framework
- Improved error handling with GraphQL error extensions
- Added Zod for environment variable validation
- Updated Prisma schema and migrations
- Configured CORS and WebSocket subscriptions
- Simplified GraphQL schema and resolver structure
- Enhanced type safety and code organization

Reviewed-on: #1
Co-authored-by: Jusemon <juansmm@outlook.com>
Co-committed-by: Jusemon <juansmm@outlook.com>

packages/ui/src/code.tsx

@@ -1,11 +1,11 @@
-import { type JSX } from "react";
+import { type JSX } from 'solid-js/jsx-runtime';
 
 export function Code({
   children,
   className,
 }: {
-  children: React.ReactNode;
+  children: JSX.Element;
   className?: string;
 }): JSX.Element {
-  return <code className={className}>{children}</code>;
+  return <code class={className}>{children}</code>;
 }