indexer ledger processing has no per-ledger timeout

[therealjhay]

ProblemA single stuck ledger (Horizon hang) blocks the poll loop indefinitely, halting ingestion.

1. No per-ledger timeout.
2. Loop blocks on hang.
3. No skip/retry state.

Solution

• Add a per-ledger processing timeout.
• Mark stuck ledgers for retry.
• Test the timeout.

Acceptance Criteria

• Stuck ledgers don't block the loop.
• Timeout handling present.
• pnpm --filter indexer build passes.

Note for Contributors: Write a clear PR description. Show a stuck-ledger test.

[d3vobed]

@d3vobed has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi I’d like to work on this issue assign me and let’s begin

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[dev-markdavid]

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

Hello maintainer, I can handle this issue.

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

[drips-wave]

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

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