Add get-replay tool

[brianr]

Problem

We want to add a tool to provide Session Replay data via the mcp server.

Solution

Main change

Add a get-replay tool, which wraps the get a session replay API endpoint.

Replays can often be large, so they are not returned inline. Two transport modes:

• file, the default, which downloads the replay and provides the filename to the mcp client
• resource, which provides the replay as an mcp resource (not supported by all mcp clients, for example, Codex)

Other changes

• All tools - turn off pretty print in responses to save context window space