fix: resolve socket hang up errors in HTTP requests

[harshithad0703]

• Add 30-second timeout configuration to prevent indefinite connection hangs
• Implement enhanced error handling with automatic retry logic for ECONNRESET
• Update network connectivity detection to include socket hang up errors

Fixes socket hang up issues occurring in Kubernetes/Istio environments
where connections are dropped by load balancers or proxy timeouts.

Changes:

• src/api.ts: Add timeout config and retry logic for socket hang ups
• src/core/inet.ts: Expand network error detection to include ECONNRESET

Resolves production errors:
'Error: socket hang up at TLSSocket.socketOnEnd (node:_http_client:528:25)'