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Stress test phase T7a (~4 days). Concurrent access stress testing using cppsuite.

Test coverage:

Multiple concurrent bulk insert sessions on disjoint key ranges
Concurrent bulk insert and normal read/write cursors on the same table
Concurrent checkpoint and bulk insert: checkpoint must not block or corrupt bulk session
Verify no deadlocks, no assertion failures, correct isolation between sessions

Depends on: WT-17215 (T4)
Can run in parallel with: T7b (WT-17219), T7c (WT-17220)

is related to

WT-17215 Bulk insert flush — implement production __wt_bulk_flush() orchestrator

WT-17216 Bulk insert flush — add functional test suite (Python suite)

WT-17217 Bulk insert flush — add crash recovery tests

related to

WT-17219 Bulk insert flush — cppsuite stress test: crash injection during flush

WT-17220 Bulk insert flush — cppsuite stress test: memory pressure

WT-17221 Bulk insert flush — scale test: large table load and O(1) memory verification

WT-17222 Bulk insert flush — performance benchmarking: throughput and flush overhead

(2 related to)