feat(jobs): daily reclaim_rent sweep for zero-balance user banks

[raymondjacobson]

Summary

• Adds a ReclaimRentJob to the solana-indexer that runs every 24h, closing zero-balance claimable token accounts created in the last 7 days for AUDIO and USDC and returning the rent to the signing fee payer.
• Reuses the existing solanaRpcProviders, solanaFeePayerKeys, and writeDbUrl configuration via cfg.SolanaConfig / database.DbPool.
• Mirrors the cmd/reclaim_rent logic (DB candidate query → on-chain re-verify of zero balance → batched 15 closes per tx) but uses the existing spl.TransactionSender for confirmation and multi-RPC broadcast.

Notes

• No eager startup run. Unlike the other indexer jobs, this one moves real SOL on mainnet, so I deliberately omitted go reclaimRentJob.Run(...) — first fire is 24h after deploy. Add it if you want it to run on every deployment.
• Skips gracefully when solanaRpcProviders or solanaFeePayerKeys are empty (dev/local).
• 7-day filter uses sol_token_account_balances.created_at (when the indexer first saw the account), since sol_claimable_accounts has no created-at column. The 7d window with a 24h cadence provides 6 days of overlap so nothing is missed.
• Rent destination = the fee payer that signs the tx (matches the cmd's default behavior).

Test plan

• CI build + vet pass
• Confirm the fee payer wallets accrue SOL after the first prod run (each closed account returns ~0.00204 SOL)
• Watch indexer logs for processBatch failed errors after first run

🤖 Generated with Claude Code

[rickyrombo]

Note: This would likely never run until the weekend, as we average at least 1 deploy every 24 hours

[raymondjacobson]

Note: This would likely never run until the weekend, as we average at least 1 deploy every 24 hours

Yea, ill make it a real cron instead