fix(clickhouse): ensure start_time is never older than X ms to prevent old partition merge issues #3817

Job	Run time
typecheck / typecheck	5m 59s
units / packages / 🧪 Unit Tests: Packages (1, 1)	5m 17s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 41s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 36s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 54s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 2s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 55s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	5m 22s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 48s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 51s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	5m 43s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 0s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 40s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 43s
units / internal / 🧪 Unit Tests: Internal (6, 8)	3m 21s
units / internal / 🧪 Unit Tests: Internal (3, 8)	3m 55s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 11s
units / internal / 🧪 Unit Tests: Internal (7, 8)	4m 45s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 44s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 37s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 13s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 20s
units / packages / 📊 Merge Reports	24s
units / internal / 📊 Merge Reports	26s
units / webapp / 📊 Merge Reports	42s
	1h 34m 9s

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