Moonshot AI Kimi K2 added; message type definitions fixed

Changed Python SDK updated to v0.30.0, TypeScript SDK to v0.27.0 — improved chat completion message type definitions for better OpenAI compatibility, fixing errors with certain message formats.

Added Moonshot AI Kimi K2 Instruct: a state-of-the-art Mixture-of-Experts model with 1 trillion total parameters and 32 billion activated parameters, designed for agentic intelligence — tool use, coding, autonomous problem-solving.

Key Features: 131K context window; 16K max output tokens; MoE with 384 experts (8 selected per token); surpasses GPT-4.1 on agentic and coding use cases.

Performance: 53.7% Pass@1 LiveCodeBench, 65.8% SWE-bench Verified, 89.5% MMLU exact match, 70.6% Avg@4 Tau2 retail tasks.