- Add `logging/setLevel` JSON-RPC method - Define `LogLevel` enum and `SetLevelParams` struct - Silence startup messages in STDIO transport - Suppress console logging during STDIO JSON-RPC errors
- Add `logging/setLevel` JSON-RPC method - Define `LogLevel` enum and `SetLevelParams` struct - Silence startup messages in STDIO transport - Suppress console logging during STDIO JSON-RPC errors