feat: sync upstream commits up to f17c92bc

fix(runtime): make startup model cache warming non-fatal on unconfigured providers

feat: sync proxy with upstream commits up to a4a0fb8 (model catalog refactor, desktop launcher, telemetry feature flags)

fix(compatibility): resolve python 3.12 compatibility NameErrors and SyntaxErrors

feat: synchronize proxy with upstream commits up to 5305bd7 and integrate NIM key rotator

Deploy latest upstream with key rotation, vision adapter, and HF configs

fix: change timeout_s to http_read_timeout in Nim Provider initialization

Deploy to Hugging Face Space