[OPIK-8202] [BE] fix: harden ClickHouseAppender against dropped user logs - #8126

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danield/OPIK-8202-fix-flaky-log-polling-tests

GitHub Actions / Python SDK E2E Tests Results (Python 3.14) succeeded Sep 3, 2026 in 0s

All 289 tests pass, 7 skipped in 4m 44s

296 tests ±0 289 ✅ +1 4m 44s ⏱️ -1s
1 suites ±0 7 💤 - 1
1 files ±0 0 ❌ ±0

Results for commit a360c1d. ± Comparison against earlier commit 48d2f87.

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