fix(search): apply publicProductCondition to filter inactive and draft products from search

[Pratyush-Panda-2006]

Description

Fixes draft, archived, and inactive product exposure in \�ackend/controllers/searchController.js. Previously, search queries and fallback queries checked only \deleted_at IS NULL\ and omitted \status = 'active', which exposed unpublished draft items in search results and caused 404 links on the storefront.

Related Issue

Closes #1691

Clean Architecture & Changes

• Imported and applied canonical \publicProductCondition('products')\ in \searchProducts\ (both primary fulltext and fallback queries).
• Added unit tests in \�ackend/tests/searchVisibility.test.js\ validating SQL condition parameters and draft exclusions.

Verification

• Run
  px jest tests/searchVisibility.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