feat: add graceful shutdown drain for /api/exports - #709
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Add in-flight request tracking and drain mechanism for /api/exports routes, following the same pattern used by /api/search and /api/auth. The SIGTERM handler in server.ts now waits for exports requests to complete before exiting. Closes Predictify-org#612
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This PR adds a graceful shutdown drain for /api/exports routes (Closes #612). On SIGTERM/SIGINT, in-flight export requests are allowed to finish before the server exits.
Changes:
src/routes/exports.ts: Added in-flight request tracking withinFlightExportsRequestscounter,exportsInFlightMiddlewareusingres.once('finish'/'close')cleanup (matching the pattern from auth.ts), anddrainExportsRequestsfunctionsrc/server.ts: Imported and calleddrainExportsRequests(4000)during shutdown alongside the existing search drain