fix: address PR 48 review findings

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Summary

This PR is intentionally stacked on PR #48 and audits every item from the supplied review against the current PR #48 head.

Confirmed and addressed

• Replace repeated reusable-range rebuilding with sort/coalesce plus a linear subtraction pass; use a HashSet for reclaimed page membership.
• Use FxHash for the 64 logical WorkTablesIndex mutation stripes and verify sequential integer IDs exercise every stripe.
• Reuse the already locked old row when an in-place update falls back to reinsert, while preserving exact-length and immutable-publication safety.
• Document the synchronous map versus asynchronous row-lock boundary and test cancelled lock acquisition cleanup.
• Refuse page reclamation if logical events remain but no next operation ID is available; add shuffled logical replay and typed persistence quarantine integration coverage.
• Generate distinct sized and unsized full-row update bodies. This removes PR Mega Beta5 #48 generated unreachable-code warnings and avoids serializing an unsized row twice on the in-place path.

Reviewed; no behavioral change required

• LockAcquirer::drop already calls an existing remove_with_lock_check method; the reported compile mismatch is not present.
• The mixed parking_lot/Tokio design does not hold a synchronous map guard across await.
• update_in_place already publishes immutable owned rows and checks exact serialized slot length before copying; regression coverage was added.
• LockMap strong-count cleanup is deliberate because public raw Arc insert/get APIs can pin entries; this is now documented.
• PersistenceIndexCorruption already has typed terminal semantics documented for intake, wait_for_ops, and close; an end-to-end test now proves them.
• SpaceDataOps default methods and engine implementations compile across default and all features.

Commit structure

One fix, performance change, or test concern per commit:

1. reusable data-range subtraction and reclaim membership
2. logical WTI stripe hashing
3. in-place fallback row reuse and safety regression
4. async row-lock cancellation cleanup
5. persistence barriers and quarantine coverage
6. full-row codegen cleanup and duplicate-serialization removal

Verification

• cargo fmt --all -- --check
• cargo test: 359 passed, 0 failed, 2 ignored
• cargo test --all-features: 360 passed, 0 failed, 3 ignored
• cargo test -p worktable_codegen: 66 passed
• cargo clippy --all-targets -- -D warnings
• cargo clippy --all-targets --all-features -- -D warnings

The macOS all-feature test link emits the existing __eh_frame compact-unwind size warning; tests still pass and Clippy is clean.

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Superseded: all six follow-up commits were rebased onto and folded into PR #48 at 1858173. PR #48 remains open and unmerged.