refactor(cuckoo-filter): move page cache ownership to chain

[nagisa-kunhah]

• Move cuckoo filter page-cache ownership from individual subfilters to the chain operation.
• Share cached pages across subfilters and commit dirty pages with metadata at the chain layer.
• Add slot-level undo for failed kick-out attempts while preserving previously staged page mutations.

Testing

• ./x.py check format
• cmake --build build --target kvrocks -j2
• cmake --build build --target unittest -j2
• ./build/unittest --gtest_filter='*Cuckoo*'
• ./build/unittest
  This pr is This PR was written using codex and GPT-5.6 sol