forked from admin/VolcanicAgenticCore
McpServerConnection starts the session's server lazily through PrepareProcessAsync, applies the call timeout, reports exits with the stderr tail and restarts on the next call, stops when idle, and supports StopAsync (reusable) and idempotent DisposeAsync. McpTool exposes a catalogue entry as an ITool and maps results with McpResultMapper. Spec change (ยง5, Decisions): ModelContextProtocol.Core 2.2.0 does not send notifications/cancelled when a request's token fires (verified against the fake server), so calls go out through SendRequestAsync with their own request id and the connection sends notifications/cancelled itself on abort and timeout. Also documents exit detection, StopAsync vs DisposeAsync and JSON-RPC errors as ordinary error results, per the plan.