feat: chain sync alert (#272) #89

Job	Run time
ci-lint	18s
build-mainnet	4m 18s
setup-params	4s
build-2k	4m 15s
build-calibnet	4m 13s
build-debug	4m 26s
build-forest	4m 19s
gen-check	5m 3s
gofmt	16s
lint	3m 9s
mod-tidy-check	32s
test (test-itest-curio, ./itests/curio_test.go)	4m 38s
test (test-all, `go list ./... \| grep -v curio/itests`)	2m 57s
test (test-itest-harmonyDB, ./itests/harmonydb_test.go)	2m 33s
test (test-itest-alertnow, ./itests/alertnow_test.go)	1m 28s
	42m 29s

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