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58ca0a16ba
SSE sessions were never included in the periodic inactivity timeout
checker, so a stale connection whose TCP close event never fired would
retain its SSEServerTransport and McpServer indefinitely.
Changes:
- Add lastActiveTime: number to the sseTransports entry type
- Initialise lastActiveTime at SSE session creation (GET /sse)
- Refresh lastActiveTime on every incoming message (POST /messages)
- Extend startSessionTimeoutChecker() to sweep and forcibly close SSE
sessions idle for more than SESSION_TIMEOUT_MINUTES, mirroring the
existing Streamable HTTP logic
- Update the checker log to count both transport maps
The existing res.on('close') cleanup path is preserved unchanged:
it remains the primary cleanup for normal disconnections; the timer
is a safety net for zombie sessions only.
Closes #9432
Signed-off-by: Andrey Antukh <niwi@niwi.nz>
Co-authored-by: Andrey Antukh <niwi@niwi.nz>