fix(review): CommentReview redeclares checklist bindings instead of reassigning

[taras]

Motivation

PR #87's review comment renders <!-- ERROR: Assignment to constant variable. -->
in its Slop section instead of the comment-review checklist.
CommentReview.md declares let hasChecklist / let checklistMd in its first
eval block and assigns them in its final eval block — but bindings cross eval
blocks as consts, so the assignment throws. The failure is data-dependent: the
final block sits inside <Show when={hasPairs}> and only runs when the PR
diff has three or more comment/code pairs.

Approach

The final block redeclares the two bindings as fresh consts instead of
assigning: a block-local declaration shadows the injected binding, and the
block's exports override env for the trailing <Show when={hasChecklist}>.
The first block's let initializers stay — they cover the no-pairs path where
the final block never runs.

Verified with minimal two-block documents against the compiled binary: the
reassignment pattern reproduces the exact error (with stale binding values
downstream), and the redeclaration pattern renders the updated values. An
audit of .reviews/ found no other cross-block reassignment
(Pattern.md's re.lastIndex = 0 is a property mutation;
DispatchRepoAnalysis.md reassigns within a single block). Full
CommentReview needs the CI LLM provider, so the next PR review run is the
end-to-end confirmation.

Scope confirmation

• All changed files relate to the stated purpose
• No drive-by refactors or "while I'm here" cleanups
• No formatting changes mixed with functional changes

New abstractions (if any)

None.

New dependencies (if any)

None.

New tests (if any)

None — verified via repro documents against the binary; lint/typecheck/tests
remain green (no .ts touched).

[github-actions]

PR #91: fix(review): CommentReview redeclares checklist bindings instead of reassigning

1 files, +5 / -2

Scope

✅ PR scope looks good.

Structural

✅ No structural bloat detected.

Slop

✅ Slop indicators look low.

Static Analysis

✅ Oxlint found no issues.

Correctness

✅ Small PR — correctness review skipped.