TSK-011 review deletion guard and Bolt PR triage

[ClarusIubar]

Summary

• Salvages the valid correctness guard from Bolt/Jules PR ⚡ Bolt: [performance improvement] optimize state updates on review deletion #711 without merging the generated branch.
• Keeps My Page reviewCount unchanged when a deleted review is not present in My Page state.
• Preserves existing public hook/API contracts and avoids .jules/bolt.md, generated comments, and unrelated optimization changes.

Architecture Boundary Evidence

• Responsibility map: useAppReviewCrudActions remains the owner of review deletion state synchronization; tests own the regression contract.
• Dependency direction: no new dependencies; API/client/store boundaries remain unchanged.
• Test seam: useAppReviewActions hook tests verify review deletion effects through public hook behavior.
• Scope map: review deletion state update only; KTO marker hooks and notification store are not touched.
• Architecture risk: low. The change preserves state references when no matching item exists and only decrements My Page stats when the review actually existed there.

PR Triage

• Closed duplicate/low-value Bolt tourism marker PRs: ⚡ Bolt: [performance improvement] Reduce array allocations in useNaverTourismMarkers #709, ⚡ Bolt: optimize intermediate array allocations in tourism markers #710, ⚡ Bolt: Combine array iterations in useNaverTourismMarkers #712, ⚡ Bolt: [performance improvement] optimize map marker array iterations #721, ⚡ Bolt: [performance improvement] optimize tourism marker rendering memory allocation #723, ⚡ Bolt: Optimize memory allocations in useNaverTourismMarkers #724.
• Closed unread-count drift-risk PR: ⚡ Bolt: Optimize Notification State Unread Count Calculation #725.
• Supersedes the useful correctness portion of ⚡ Bolt: [performance improvement] optimize state updates on review deletion #711 with repo-local implementation.

Validation

• npm.cmd run check:numeric-literals
• npm.cmd run lint
• npm.cmd run typecheck
• npm.cmd run test:unit
• npm.cmd run test:integration
• npm.cmd run test:regression
• npm.cmd run test:e2e
• npm.cmd run build
• git diff --check
• touched files UTF-8 no BOM check

Related to #376
Implements #726