fix(provider): remove invalid flush_task_arg_buffers call causing HTTP 500 error on streaming responses

feat: sync upstream commits up to f17c92bc

feat: apply upstream commits f077c358, 8696e132, cb5b4305

feat: sync upstream 25th July commits (MiniMax-M3 native tool recovery, HTTP 403 permission denials)

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

fix(streaming): remove Task tool buffering and fix thinking bypass

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

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

Fix: Bypass think_parser to emit raw thinking tags as plain text when reasoning isn't explicitly requested by client

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

fix: next_client typo and dataclass super() issue in ExecutionFailure

fix: implement missing _get_client methods for key rotation

Deploy to Hugging Face Space