Add a rea skill (skill-gated MCP): agents get binary and application package
reverse engineering through a rea MCP server, with tools kept deferred so the
172-tool catalog never bloats the prompt until the skill loads.
Remote MCP servers now take timeout_seconds (default 120): analysis servers
with minutes-long tool calls were cut off mid-call by the fixed 120s client
timeout. Applies to the Streamable HTTP transport; wired through discovery,
the ScopeSentry sync client, the API and the MCP dialog.
Closes#8
