(윤형도) F/KR/DD/IT/EA

feat(session): add per-session MCP server support for REST API

2

## Summary Adds `mcpServers` parameter to `POST /session` endpoint, enabling per-session MCP server configuration via REST API. ## Changes - Add `mcpServers` field to `Session.create.schema` - Pass `mcpServers` to `Session.createNext`...

feat: add per-session MCP server support for REST API (parity with ACP)

1

## Problem ACP (`newSession()`) supports `mcpServers` parameter for per-session MCP configuration, but REST API `POST /session` doesn't. This creates inconsistency for integrations that need dynamic MCP configuration via REST. ##...