feat(tap-agent): use network subgraph for Horizon RAV redemption tracking

[suchapalaver]

Query paymentsEscrowTransactions from the network subgraph to detect redeemed Horizon RAVs, replacing the LatestRavs query approach. This enables more reliable detection of allocation redemptions by checking for actual redeem transactions rather than comparing RAV values.

Also adds allocation redemption checking for the AllocationId check to prevent accepting receipts for already-redeemed Horizon allocations.

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Signed off by Joseph Livesey [email protected]

[coveralls]

Pull Request Test Coverage Report for Build 21615507385

Details

• 178 of 219 (81.28%) changed or added relevant lines in 3 files are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.3%) to 69.149%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
crates/tap-agent/src/agent/sender_allocation.rs	19	21	90.48%
crates/tap-agent/src/tap/context/checks/allocation_id.rs	132	141	93.62%
crates/tap-agent/src/agent/sender_account.rs	27	57	47.37%

Files with Coverage Reduction	New Missed Lines	%
crates/tap-agent/src/agent/sender_account.rs	3	85.72%

Totals
Change from base Build 21612257228:	0.3%
Covered Lines:	10743
Relevant Lines:	15536

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💛 - Coveralls