[Contracts] contracts/stream_contract/test_snapshots directory has no README explaining what the snapshot files represent or how to regenerate them

[grantfox-oss]

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Why this matters

contracts/stream_contract/test_snapshots/ is tracked in git (per the .gitignore mismatch already flagged separately) but there's no explanation anywhere of what these snapshot files are for, when they're regenerated, or what a contributor should do if their local test run produces a diff against a committed snapshot. This is the kind of tooling detail that blocks a first-time contributor's PR when their cargo test output unexpectedly differs.

Acceptance criteria

• Add a short doc (README in the snapshots directory or a section in contracts/stream_contract/README.md) explaining snapshot purpose and regeneration command
• Document what to do when a snapshot diff appears in a PR (regenerate vs. investigate a real behavior change)

Files to touch

• contracts/stream_contract/test_snapshots/
• contracts/stream_contract/README.md

Out of scope

• Fixing the .gitignore mismatch (tracked separately)
• Changing the snapshot testing framework

[Netty-kun]

@Netty-kun has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer, I'd be glad to handle this issue. I've reviewed the requirements and am confident in the implementation. I'll start immediately if assigned, provide progress updates, and submit a well-tested PR without unnecessary delay.

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[rilwanubala]

@rilwanubala has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi i would like to work on this issue

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[Mikey-222]

@Mikey-222 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

can i work on this

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[Amas-01]

@Amas-01 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello Maintainer,
I'll like to work on this.
Please Assign me

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[drips-wave]

Congratulations, @Mikey-222! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@Mikey-222's PR #1129 was approved and merged by @ogazboiz.

🏆 @Mikey-222: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (271 total points). Track your full progress on GrantFox.

👏 Great work, @Mikey-222! Keep contributing to LabsCrypt.

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This issue has been completed by @Mikey-222 as part of the Stellar Wave Program's 7th Wave 🥳

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