fix: send sdkMcpServers in initialize and defer end_input for string prompts#596

drillan wants to merge 4 commits intoanthropics:mainanthropics/claude-agent-sdk-python:mainfrom

drillan:fix/sdk-mcp-servers-in-initializedrillan/claude-agent-sdk-python:fix/sdk-mcp-servers-in-initializeCopy head branch name to clipboard