[PRAC-258] Fix pagination

[Kuba0517]

Summary by CodeRabbit

• New Features

  • Server-driven pagination added across moderation views (reports, users, logs) with page navigation and total-pages support.
  • Reports list now fetches paged data from the API and includes pagination controls; filtering resets to first page.

• Bug Fixes

  • Consistent pagination parameter handling across moderation endpoints and UI.

• Chores

  • Updated API schemas and client hooks to support flat page/size parameters and paged responses.

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[coderabbitai]

📝 Walkthrough

Walkthrough

This PR standardizes pagination across the moderation module by replacing Spring Pageable objects with explicit page/size parameters in backend controllers and services, adds paged repository methods, adapts frontend API schemas and hooks to the new shapes, and adjusts moderator UI components to consume paged responses (including reports pagination).

Changes

Cohort / File(s)	Summary
Backend Controller Pagination Refactoring backend/src/main/java/com/codu/dev/moderation/api/ModerationController.java	Endpoints getAllUsers, getReports, and getLogs now accept explicit @RequestParam int page and @RequestParam int size (defaults 0 and 10). getReports now returns Page<ReportModerationDTO>.
Backend Service Interface Updates backend/src/main/java/com/codu/dev/moderation/service/ModerationService.java	Signatures changed to (int page, int size) for getAllUsers and getModerationLogs; getReports now accepts (ReportStatus status, int page, int size) and returns Page<ReportModerationDTO>. New method deleteUser(UUID userId, UUID moderatorId) added.
Backend Service Implementation backend/src/main/java/com/codu/dev/moderation/service/ModerationServiceImpl.java	Implementations switched to use PageRequest.of(page, size) and return Page<*> for users, reports, and logs. Replaced Pageable usage with explicit PageRequest.
Backend Repository Enhancement backend/src/main/java/com/codu/dev/report/infra/persistence/repository/ReportRepository.java	Added paginated repository methods: findAllByIsDeletedFalseOrderByCreatedAtDesc(Pageable) and findAllByStatusAndIsDeletedFalseOrderByCreatedAtDesc(ReportStatus, Pageable) with EntityGraph annotations.
Frontend API Schema Changes frontend/src/lib/api/schemas/* (getAllUsers1Params.ts, getLogsParams.ts, getReportsParams.ts, pageReportModerationDTO.ts, pageableObject.ts, index.ts)	Replaced { pageable: Pageable } params with flattened page?: number; size?: number; added PageReportModerationDTO paged response type and re-exported it; minor property reorder in PageableObject.
Frontend API Hook & Client Updates frontend/src/lib/api/moderation-controller/moderation-controller.ts	Hook/query option overloads updated to accept optional params; getReports return type changed to paged DTO; callers can omit params object.
Frontend Page Components frontend/src/app/(staff)/moderator/* (logs/page.tsx, users/page.tsx, reports/page.tsx)	Calls updated from nested { pageable: { page, size } } to flat { page, size }. Reports page introduces PAGE_SIZE, reads response.data?.content and response.data?.totalPages.
Frontend Moderation Tables frontend/src/features/moderation/* (users-table.tsx, moderation-logs-table.tsx)	Hook invocations updated to pass { page, size } top-level parameters; data handling largely unchanged.
Frontend Reports Table Enhancement frontend/src/features/moderation/reports-table.tsx	Switched to server-driven paged fetching via useGetReports, added currentPage state and pagination handlers, derive reports from response.data?.content, and expanded ReportsTable props to accept initialTotalPages.

Sequence Diagram(s)

(omitted)

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🐇
I hopped through pages, one and two,
Flattened params and fetched anew,
Content comes paged, neat and bright,
Moderation hops with lighter flight. ✨

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