Feature/opentelemetry

[Opulencechuks]

Closes #508

Description:
This PR introduces distributed tracing to the application to provide pinpoint visibility into latency bottlenecks across the API, database queries, and external HTTP calls, resolving the difficulty in debugging performance issues.

Changes Included:

• OpenTelemetry Initialization: Created src/utils/tracing.js which sets up the @opentelemetry/sdk-node along with auto-instrumentations for Express and HTTP out-of-the-box.
• Context Propagation: Context propagation across async boundaries is handled natively by the OpenTelemetry Node SDK's async hooks.
• Zipkin Exporter Setup: The Node SDK is configured with @opentelemetry/exporter-zipkin to export traces to the Jaeger/Zipkin format natively via the standard Zipkin endpoint (http://localhost:9411/api/v2/spans).
• Prisma Instrumentation: Enabled the "tracing" preview feature in schema.prisma and instantiated PrismaInstrumentation to seamlessly trace database queries in tandem with Express incoming requests.
• Bootstrapping Tracing: Imported the new tracing script at the very top of server.js to ensure the environment is instrumented before requiring express, prisma, or any other packages.

Impact:

• Full visibility into request lifecycles.
• Easy tracking of how much time is spent specifically on Prisma queries, external HTTP calls, or processing within Express middleware.

Reviewer Notes:
Please ensure you have a local Zipkin/Jaeger instance configured to receive trace data at the specified ZIPKIN_ENDPOINT environment variable in order to view the exported traces locally.

[vercel]

@Opulencechuks is attempting to deploy a commit to the Abdulazeem's projects Team on Vercel.

A member of the Team first needs to authorize it.

[drips-wave]

@Opulencechuks Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[Abdulazeem-code]

FIX BACKEND BUILD TEST ERROR