As a dev, I want to disable OpenTelemetry until we are ready for full observability

[k-allagbe]

Description

Context
We have OpenTelemetry configured in our backend, but we are not actively using it. It adds unnecessary noise in the logs and increases system overhead.

Problem Statement
We need a way to disable OpenTelemetry temporarily while keeping the configuration code intact. This should allow us to easily re-enable it in the future when we are ready to fully integrate observability.

Acceptance Criteria

• OpenTelemetry does not generate logs, traces, or consume resources when disabled.
• The configuration remains in place for future reactivation.
• Re-enabling OpenTelemetry does not require lots of code modifications.