Issue 30: Persist REPL history to ~/.starforge/repl_history

[Nanle-code]

Labels: enhancement, developer-experience

Description:
src/utils/repl.rs / src/commands/shell.rs should save command history across sessions.

Acceptance criteria:

History file with configurable max lines.
--no-history opt-out.
Files:

src/utils/repl.rs
src/commands/shell.rs

[CMI-James]

@CMI-James has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

can i take on this issue? ETA 8 hours.

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[drips-wave]

Congratulations, @CMI-James! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @CMI-James: 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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[drips-wave]

This issue has been completed by @CMI-James as part of the Stellar Wave Program's 5th Wave 🥳

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