fix(scrapers): filter out inactive faculties and departments

[ravern]

Summary

• The new API returns all faculties and departments regardless of their active status, unlike the old API which accepted an eff_status: 'A' parameter for server-side filtering
• Added client-side filtering by EffectiveStatus === 'A' for both faculties and departments after fetching (and after the 099 fallback), before the cleanFacultyDepartment mapping

Test plan

• Verify that inactive faculties/departments are excluded from the output
• Verify that the manually-added 099 faculty (which has EffectiveStatus: 'A') is retained
• Verify that facultyDepartments.json output only contains active entries

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[vercel]

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2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
nusmods-export	Ignored	Preview	Mar 13, 2026 7:04am
nusmods-website	Ignored	Preview	Mar 13, 2026 7:04am

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.67%. Comparing base (988c6fd) to head (40e748d).
⚠️ Report is 210 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4313      +/-   ##
==========================================
+ Coverage   54.52%   56.67%   +2.15%     
==========================================
  Files         274      308      +34     
  Lines        6076     6964     +888     
  Branches     1455     1682     +227     
==========================================
+ Hits         3313     3947     +634     
- Misses       2763     3017     +254     

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[greptile-apps]

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The change is a simple, well-placed filter that addresses the API behavior change. The logic is straightforward, type-safe, and preserves the manually-added 099 faculty.
• No files require special attention

Important Files Changed

Filename	Overview
scrapers/nus-v2/src/tasks/GetFacultyDepartment.ts	Added client-side filtering to exclude inactive faculties and departments by EffectiveStatus === 'A'

_{Last reviewed commit: 24e3dca}

[ravern]

This is actually a no-op in terms of data produced, since it looks like there are no inactive faculties/departments.

So the intention here is to just preserve functionality from previous version of scraper.