chore: remove the compact hook warn message and rename auto_compaction_threshold to auto_compaction_imperfect_blocks_threshold

[BohuTANG]

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Summary

• remove warn log from hook_compact, this maybe flood
• auto_compaction_threshold -> auto_compaction_imperfect_blocks_threshold, make it more meaningful
• collapsed hook_compact setting checks

Fixes #[Link the issue here]

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