Add milestoneRepository pagination, soft-delete, and verifier-filter tests in src/tests/milestoneRepository.queries.test.ts

[1nonlypiece]

📌 Description

The src/repositories/milestoneRepository.ts data-access layer underpins
milestone listing, verifier assignment, and soft-delete. A prior wave seeded a
milestoneRepository.test.ts title, but coverage of keyset pagination ordering,
soft-delete exclusion, and verifier-assignment filtering as a combined matrix is
still missing.

This issue adds a query-behaviour test matrix for the milestone repository.

🎯 Requirements and Context

• Assert keyset pagination is stable across inserts (no skipped/duplicated rows).
• Assert soft-deleted milestones are excluded by default and includable
  explicitly.
• Assert verifier-assignment filters return only the assigned verifier's
  milestones.
• Assert org-scoping on every query path.

🛠️ Suggested Execution

1. Fork the repo and create a branch

git checkout -b test/milestone-repository-queries

2. Implement changes

• Add src/tests/milestoneRepository.queries.test.ts using the DB test harness.
• Cross-reference docs/milestones.md.

3. Test and commit

• Run: npm test -- src/tests/milestoneRepository.queries.test.ts
• Cover edge cases: pagination stability under concurrent insert, soft-delete
  include/exclude, verifier filter, empty result, org isolation.

Example commit message

test: milestone repository pagination, soft-delete, and verifier filters

✅ Guidelines

• Minimum 95% test coverage on the repository.
• Timeframe: 96 hours.

🏷️ Labels

type-testing · area-backend · MAYBE REWARDED · GRANTFOX OSS · OFFICIAL CAMPAIGN

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[AugistineCreates]

@AugistineCreates has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Please assign. You will get a pr today

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Congratulations, @AugistineCreates! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @AugistineCreates: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@AugistineCreates's PR #938 was approved and merged by @1nonlypiece.

🏆 @AugistineCreates: You earned 40 FoxPoints for this contribution! Your current tier: Builder (2,281 total points). Track your full progress on GrantFox.

👏 Great work, @AugistineCreates! Keep contributing to Disciplr-Org.

[drips-wave]

This issue has been completed by @AugistineCreates as part of the Stellar Wave Program's 6th Wave 🥳

😎 @AugistineCreates: You earned 100 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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