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Eliminate admin N+1 queries and lazy-load app routes

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yoyuzh
2026-04-12 00:48:23 +08:00
parent 30a9bbc1e7
commit 9af2d38e37
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@@ -821,3 +821,27 @@
- Verification passed with:
- `cd front && npm run lint`
- `cd front && npm run build`
## 2026-04-12 Backend/Frontend Refactor Batch 26
- Review follow-up perf fixes were applied for two admin read-path N+1 hotspots plus route-level code-splitting in frontend root router.
- `AdminInspectionQueryService#listFileBlobs(...)` no longer executes per-row blob/owner/stat lookups:
- introduced batch blob load by object-key (`FileBlobRepository.findAllByObjectKeyIn(...)`)
- introduced batch entity-link aggregate query (`StoredFileEntityRepository.findAdminLinkStatsByFileEntityIds(...)`)
- mapping now uses in-memory maps (`objectKey -> blob`, `entityId -> link stats`) and keeps existing response semantics (`blobMissing`, `orphanRisk`, `referenceMismatch`) unchanged.
- `AdminUserGovernanceService#listUsers(...)` no longer executes per-user storage sum:
- introduced `StoredFileRepository.sumFileSizeByUserIds(...)` grouped aggregate query
- list path now batch-loads storage usage map and maps each row without per-user SQL.
- Regression tests updated/added:
- `AdminInspectionQueryServiceTest` now covers batch blob/link-stat mapping path and asserts old per-row repository methods are no longer used.
- `AdminUserGovernanceServiceTest` list-users path now stubs/asserts grouped `sumFileSizeByUserIds(...)`.
- Frontend route loading in `front/src/App.tsx` switched to lazy imports + `Suspense` fallback:
- all main pages and admin pages/layouts are now route-level lazy chunks instead of root synchronous imports.
- Verification passed with:
- `cd backend && mvn "-Dtest=AdminInspectionQueryServiceTest,AdminUserGovernanceServiceTest,AdminControllerIntegrationTest" test`
- result: 34 tests run, 0 failures
- full regression `cd backend && mvn test`
- Backend total after this batch: 378 tests passed.
- `cd front && npm run lint`
- `cd front && npm run build`
- build output now shows split chunks with main entry chunk `assets/index-CXR4rSrf.js` at **244.85 kB** (previously reported ~538.17 kB), and no Vite chunk-size warning.