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>

apps/api/.gitignore

@@ -1,3 +1,58 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
 node_modules
-# Keep environment variables out of version control
-.env
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+# 0x
+profile-*
+
+# mac files
+.DS_Store
+
+# vim swap files
+*.swp
+
+# webstorm
+.idea
+
+# vscode
+.vscode
+*code-workspace
+
+# clinic
+profile*
+*clinic*
+*flamegraph*