chore: update license from MIT to Apache-2.0 in pyproject.toml

Align pyproject.toml license field and classifier with the actual LICENSE file which uses Apache-2.0.

Author: jasinluo

pyproject.toml

@@ -11,15 +11,15 @@ dynamic = ["version"]
 description = "Python LLM agent framework with multi-model support (OpenAI, Anthropic, Gemini, DeepSeek), tool calling, session management, A2A/MCP/AGUI protocols, and FastAPI server integration"
 readme = "README.md"
 requires-python = ">=3.10"
-license = {text = "MIT"}
+license = {text = "Apache-2.0"}
 authors = [
     {name = "Tencent", email = "team@tencent.com"}
 ]
 keywords = ["trpc", "agent", "llm", "ai", "langchain", "langgraph", "mcp", "a2a", "fastapi", "multi-agent", "tool-calling"]
 classifiers = [
     "Development Status :: 3 - Alpha",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
+    "License :: OSI Approved :: Apache Software License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",