refactor(query): experimental aggregate final with recursive spill support

[dqhl76]

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Summary

refactor(query): add experiment aggregate final to support recursive spill

introduce enable_experiment_aggregate_final setting, default is false

• Temporarily enabled (true) for CI testing convenience; will be turned off before merge

TODO: will enrich summary latter

Tests

• Unit Test
• Logic Test
• Benchmark Test (TODO)
• 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 

[github-actions]

🤖 CI Job Analysis

Workflow: 18712749536

📊 Summary

• Total Jobs: 83
• Failed Jobs: 22
• Retryable: 0
• Code Issues: 22

❌ NO RETRY NEEDED

All failures appear to be code/test issues requiring manual fixes.

🔍 Job Details

• ❌ linux / test_unit: Not retryable (Code/Test)
• ❌ linux / test_stateful_standalone: Not retryable (Code/Test)
• ❌ linux / test_stateful_cluster: Not retryable (Code/Test)
• ❌ linux / test_stateless_cluster: Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio_with_bendsave: Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, http, native): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, hybrid, parquet): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, http, parquet): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone_minio (query, hybrid, native): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (query, 4c16g, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (ydb, 2c8g, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / standalone (ydb, 2c8g, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (ydb, 2c8g, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (query, 4c16g, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (crdb, 2c8g, 2, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpch, 2c8g, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpch, 2c8g, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpcds, 2c8g, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (crdb, 2c8g, 2, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (tpcds, 2c8g, http): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (ydb, 2c8g, hybrid): Not retryable (Code/Test)
• ❌ linux / sqllogic / cluster (query, 4c16g, http): Not retryable (Code/Test)

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🤖 About

Automated analysis using job annotations to distinguish infrastructure issues (auto-retried) from code/test issues (manual fixes needed).