perf: Use Granian as app server Much more performant and secure, made in Rust.

doc: Specify App Config refresh behavior 

ux: Lower thresholds for timeout static prompt triggers 

doc: Add related projects 

chore: Remove dead code 

fix: OTEL spans in async context 

fix: Context windows for gpt-4.1 models family 

quality: Code quality 

perf: Migrate to gpt-4.1 and gpt-4.1-nano Lower the answer latency by a few 10s or milliseconds.

fix: Add enough LLM quota for basic usage 150k tokens /sec