Feature: Implement batch stream creation

[Jaydbrown]

Overview

Payroll use cases require creating hundreds of streams at once. Doing this sequentially prompts the user for hundreds of signatures.

Implementation Details

• Add a createBatchStreams(configs: StreamConfig[]) method.
• Build a single transaction containing multiple invokeHostFunction operations.
• Note: The transaction size limit in Soroban might restrict this to ~10-15 streams per tx. The method should chunk the array and return an array of prepared transactions if it exceeds the limit.

[neyij]

@neyij 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.

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[Viky207]

@Viky207 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

hello can i work on this issue

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[drips-wave]

Congratulations, @Viky207! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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