Add TCP keepalive options for database connections #3859

Job	Run time
Detect affected TS workspaces	43s
Test packages/agents-server	2m 45s
Test packages/agents-runtime	2m 38s
Test packages/electric-ax	43s
Test packages/agents-server-ui	49s
Test packages/agents	47s
Test packages/agents-server-conformance-tests	1m 6s
Test packages/y-electric	40s
Build and typecheck packages/agents-runtime	41s
Test packages/start	40s
Test packages/agents-mobile	58s
Test packages/agents-desktop	1m 1s
Build and typecheck packages/agents-mobile	57s
Test packages/agents-mcp	40s
Build and typecheck packages/agents-server-ui	38s
Build and typecheck packages/react-hooks	41s
Build and typecheck packages/agents-desktop	52s
Build and typecheck packages/typescript-client	28s
Build and typecheck packages/agents-server-conformance-tests	1m 0s
Build and typecheck packages/start	28s
Build and typecheck packages/agents-server	57s
Build and typecheck packages/agents-mcp	33s
Build and typecheck packages/agents	40s
Build and typecheck packages/electric-ax	44s
Build and typecheck packages/y-electric	37s
Build and typecheck packages/experimental	35s
ensure_sync_service_image / build_image	47s
Test ${{ matrix.package_dir }} w/ sync-service	0s
Check and build ${{ matrix.example_folder }}	-1s
	24m 7s

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