core: G-address regex duplicated 3x and validate-source-shape imports from deploy-recovery module

[Dione-b]

Summary

The Stellar public-key regex /^G[A-Z2-7]{55}$/ is defined three times:

• contracts/resolve-method-args.ts:6 (STELLAR_ADDRESS_REGEX)
• contracts/resolve-source-address.ts:6
• stellar-cli/recover-deploy-contract-id.ts:28-30 (isLikelyPublicKeySource)

Additionally, contracts/validate-source-shape.ts:2 imports isLikelyPublicKeySource from the deploy-recovery module, coupling source validation to a recovery-specific file.

Why it matters

The strkey alphabet rule is already a documented footgun (#135); three copies invite divergence, and the cross-module import is a design smell.

Suggested fix

Centralize STELLAR_ADDRESS_REGEX/isLikelyPublicKeySource in a single module (e.g. stellar-cli/strkeys.ts) and re-export from there.

Priority: Medium | Release impact: Patch | Breaking: No

[rexx010]

@rexx010 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello Maintainer, I have experience in open source and web development, please can you assign to me this issue I applied?.
I will implement the task perfectly.
And I will ensure to follow the requirements and guideline you have given.
Thanks much.

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[ThomazPassarelli]

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

Hey! I noticed the duplicated regex and imports across these modules. I can quickly clean this up, extract the common logic into a shared helper, and make sure all tests pass. Happy to jump on this right away!

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[Galmanus]

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

PR #182. The Stellar address pattern was repeated across files. The fix moves it into one shared place and reuses it. Covered by a test; full core suite passes.

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