fix(review): ensure moderation_status and is_approved default values on create in reviewRepository

[Pratyush-Panda-2006]

Description

Fixes missing review moderation defaults in \�ackend/repositories/reviewRepository.js. Previously, \ReviewRepository.create()\ omitted \moderation_status\ and \is_approved\ during database insertion, causing reviews created through the repository layer to be excluded by \indByProduct()\ queries that filter on \moderation_status = 'approved'.

Related Issue

Closes #1694

Clean Architecture & Changes

• Explicitly specified default \moderation_status = 'approved'\ and \is_approved = 1\ in \ReviewRepository.create().
• Added unit tests in \�ackend/tests/reviewRepoModeration.test.js\ validating SQL statement construction and parameter binding.

Verification

• Run
  px jest tests/reviewRepoModeration.test.js\ (All unit tests passing cleanly).

[hydra-maintainer]

🔍 Quality Gate Report

✅ All quality gates passed!

Status	Check	Details
✅	Linked Issue	PR description references a closing issue ✅

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[hydra-maintainer]

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[hydra-maintainer]

💡 Suggested reviewers based on relevant file history: @Aditya8369, @MOHITKOURAV01