CreateMilestoneDto doesn't validate that deadline is in the future, same gap as CreateBountyDto (#108)

[chonilius]

CreateMilestoneDto.deadline (src/milestones/dto/create-milestone.dto.ts) is validated only with @IsOptional() @IsISO8601() — any syntactically valid ISO-8601 date is accepted, including one already in the past. This is the identical gap already tracked for CreateBountyDto in #108, just in the sibling DTO for milestones — worth fixing together given MilestonesService doesn't have any deadline-expiry handling at all (unlike bounties' expireOverdue), so a past-dated milestone deadline isn't just non-functional at creation time, it has no downstream safety net either.

[ghzhost]

Resolved by PR #180

[Syringe7]

I would love to work on this issue. please assign to me to work on it ASAP

[Dboy-202]

@Dboy-202 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello Maintainer, I’ve reviewed this issue in detail and understand what needs to be done. I’d be happy to take it on and work toward a solid solution.

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[Samaro1]

@Samaro1 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Gm gm boss. I would like to take this one on. I can add future-date validation to CreateMilestoneDto.deadline mirroring the fix tracked for CreateBountyDto in #108, and check whether MilestonesService needs the same kind of downstream expiry handling bounties get via expireOverdue given it currently has none. Please assign it to me.

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[Ahbiz]

@Ahbiz has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer, i would love to work on this issue.

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[dollfins]

@dollfins has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would like to help resolve this issue by adding a future-date validator to CreateMilestoneDto.deadline in src/milestones/dto/create-milestone.dto.ts. I'll ensure it mirrors the validation pattern used for CreateBountyDto to prevent past-dated deadlines from bypassing safety checks.

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