fix(binder): correct join statistics propagation

[forsaken628]

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Summary

• Correct join output statistics by handling join-key and non-key columns separately, using matched input rows to
  update NDV, null counts, and histograms according to join semantics
• Fix DPhyp join reordering reusing stale pre-rewrite statistics by deriving statistics for each candidate and
  preserving the selected join tree’s updated estimates
• Synchronize materialized CTE consumer estimates with the optimized producer so downstream optimizers do not use
  stale cardinalities
• Add debug-time SExpr type consistency validation, including regression fixes for Decimal eager aggregation and
  aggregating-index local schema symbols
• Add join-statistics unit tests, TPC-DS Q64 materialized-CTE optimizer replay coverage, and updated join-order
  goldens

Benchmark

tpcds sf 100 from 473.65s to 147.23s.

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 

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ClickBench Report

• internal: https://benchmark.databend.com/clickbench/pr/20122/29033509639/internal.html

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ClickBench Report

• internal: https://benchmark.databend.com/clickbench/pr/20122/29136515488/internal.html

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