fix(backend): Fix .env file read contention on pyro connection setup

[majdyz]

On high concurrent pyro connections initialization, the .env file being on the high read contention causing connection establishment to fail.

Changes 🏗️

Move all the usage of. Config as a globally initialized variable.

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⚡ Recommended focus areas for review API Changes Several API endpoints were changed from async to sync functions. Need to verify this won't impact request handling performance or concurrency. Configuration Issue The pyro_host variable is used before being defined when constructing the client URI. This could lead to connection errors. Logging Level Change Changed retry failure logging from info to error level. Verify this aligns with logging strategy and won't flood error logs.

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[aarushik93]

@majdyz is this related to today's outage? Because we don't read from .env

[majdyz]

@aarushik93 unrelated, just something I found during the local test.

[aarushik93]

Can you explain a bit more, the PR description doesn't really explain to me what the issue is or what its fixing