feat(base): allow exceeded memory limit if no workload

[zhang2014]

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Summary

feat(base): allow exceeded memory limit if no workload

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is 

[zhang2014]

Memory Management Test Summary

Test Configuration:

• max_server_memory_usage = 1GB
• max_query_memory_usage = 400MB
• query_out_of_memory_behavior = 'throw'
• 3 concurrent queries executing:

  SELECT number::string FROM numbers(10000000) GROUP BY number::string; -- ~480MB/query

Results Comparison:

	Main Branch	This PR
Outcome	All 3 queries → Soft OOM	1 Soft OOM + 2 Successes

[github-actions]

Docker Image for PR

• tag: pr-17785-5f6f91c-1745132821

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