CLI-029 — Add Stellar smart contract starter template

[dDevAhmed]

Summary

Add the MVP Stellar smart contract template using current Stellar tooling conventions.

Scope

• trusted contract template structure;
• Cargo/project metadata;
• sample contract and tests;
• generated README with build/test guidance;
• smoke validation using current Stellar CLI/tooling where appropriate.

Security Requirements

Do not embed private keys, seeds, or deployment credentials. Keep example contract intentionally simple and non-custodial.

Acceptance Criteria

• template is selectable and generates successfully;
• generated contract builds/tests with documented supported tooling;
• current stellar CLI terminology/workflow is used;
• no secrets are committed;
• template remains starter-focused, not a production financial protocol.

Dependencies

• CLI-025
• CLI-026

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🏷 Labels

• type: feature
• area: templates
• priority: P1
• difficulty: advanced
• stellar