v0.2.88

• Fix prompt echo in streaming text completions
• Fix selected-token logprobs and logprobs for buffered UTF-8 output
• Fix decode rates for completions that finish during prefill
• Fix TypeScript type checking for installed packages
• Upgrade @mlc-ai/web-runtime to 0.28.0-dev2

Full Changelog: v0.2.87...v0.2.88