[Audit] Token-symbol resolution duplicated across three files with no single source of truth

[K1NGD4VID]

Filed from the second-wave repository audit (issue 62/100). See the audit summary for full category context.

• Location: frontend/src/lib/dashboard.ts:71-77, frontend/src/lib/api/streams.ts:36-42, frontend/src/app/streams/[id]/stream-details-content.tsx:50-54
• Problem: Three independent resolveTokenLabel/TOKEN_SYMBOLS implementations exist; a new token added to TOKEN_ADDRESSES in lib/soroban.ts must be manually kept in sync with the third file's hardcoded map, or that page silently mis-renders the symbol.
• Evidence: Three separate implementations of the same address→symbol mapping.
• Suggested implementation: Extract one shared resolveTokenLabel util (deriving from TOKEN_ADDRESSES) and import it in all three locations.
• Acceptance criteria: Adding a new token to TOKEN_ADDRESSES correctly resolves its symbol on all three surfaces with a single code change.
• Difficulty: S
• Expected impact: Removes a silent-drift bug source that only surfaces when a new token is added.

[enny791]

@enny791 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

please assign

ℹ️ Repo Maintainers: To accept this application, review their application or assign @enny791 to this issue.

[ayomustap]

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

Hi maintainer, Kindly assign. I can fix this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ayomustap to this issue.

[drips-wave]

Congratulations, @enny791! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @enny791: 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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