[minor] Add UptimeRobot bypass and tighten lifecycle handling

[joecorall]

No description provided.

[github-actions]

Running State Persistence Stress Tests

Testing Small, Medium, Large, and XLarge scales...

Stress Test Summary

Scale	Entries	JSON Size	Time	Threshold	Status
Small	16 rate / 256 verified	16.08 KB	1ms	<500ms	✅
Medium	256 rate / 65K verified	3.90 MB	95ms	<1s	✅
Large	1K rate / 262K verified	15.59 MB	422ms	<3s	✅
XLarge	4K rate / 1M verified	62.74 MB	2257ms	<10s	✅

ℹ️ Performance metrics reported (thresholds informational only in CI)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 69.07216% with 30 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
main.go	53.33%	16 Missing and 5 partials ⚠️
internal/helper/uptimerobot.go	77.50%	6 Missing and 3 partials ⚠️

Files with missing lines	Coverage Δ
internal/helper/google.go	86.86% <100.00%> (+2.99%)	⬆️
internal/state/lock.go	80.45% <100.00%> (+0.22%)	⬆️
internal/helper/uptimerobot.go	77.50% <77.50%> (ø)
main.go	84.42% <53.33%> (-0.28%)	⬇️

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